Works by Charles Sanders Peirce

The New List of Categories and Related Early Work

On a New List of Categories (1867)
Peirce's derivation of the categories: regarded by Peirce himself, early and late, as a foundational paper for his logic and semiotic.
Located here — http://www.cspeirce.com/menu/library/bycsp/bycsp.htm
Upon Logical Comprehension and Extension (1867)
Peirce provides a comprehensive historical overview of the variations on the distinction which Frege drew in terms of "Sinn" vs. "Bedeutung" ("sense" and "reference"), Peirce's version of this being labeled here as "depth" vs. "breadth" (as his preferred alternative to "comprehension" vs. "extension"). Going beyond Frege, after defining the distinction in his own way, Peirce uses this as a basis for defining the concept of information.
Remote location — http://www.iupui.edu/~peirce/web/writings/v2/w2/w2_06/v2_06.htm
(Peirce Edition Project)
Harvard Lecture 1 (MS 94: 1865)
Peirce's view of the non-psychological basis for logic as a science, formulated two years before publication of the New List. It also provides clues to the relationship of his view to John Locke's.
Located here — http://www.cspeirce.com/menu/library/bycsp/earlyms/ms94harvard1.pdf
From Peirce's Logic Notebook (MS140: 1867)
Some background for the argument of the New List and the comprehension/extension paper.
Remote location — http://www.iupui.edu/~peirce/web/writings/v2/w2/w2_01/v2_1.htm
(Peirce Edition Project)
MS 115 Logic Chapter 1 (a manuscript fragment from 1866)
[Note from B.U.: the file is not at the current or previous server location of cspeirce.com, nor does the file or this entry for it appear in Wayback Machine versions of Arisbe at earlier URLs. At any rate, the text appears in Writings Volume 1, pp. 351–7 (Google preview). Joseph Ransdell quotes a paragraph from it here. End of note.]
This is a long fragment labeled "Logic Chapter 1" by Peirce himself. It is of special interest as being identified by Murray Murphey as Draft 2 of "On a New List of Categories" and presented in truncated form in an appendix in Murphey's The Development of Peirce's Philosophy, though thought of by Peirce himself as the first chapter of a logic book, whereas the New List was addressed rather to the readership of the Proceedings of the American Academy of Arts and Sciences
Was supposed to be located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms115.htm
One, Two, and Three: A manuscript fragment (MS144: 1867)
This is a short fragment labeled "Chapter 1: One, Two, and Three", of a projected logic book of special interest in connection with the New List in particular.
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms144.htm
Critique of Positivism (MS146: 1867-1868)
An untitled MS which the editors at the Peirce Edition Project have entitled as above on the basis of its content.
Remote location &mdash http://www.iupui.edu/~peirce/writings/v2/w2/w2_11/v2_11.htm
(Peirce Edition Project)

The Peirce-Harris Exchange on Hegel
Peirce poses some questions to the Hegelian circle around W. T. Harris, the leading American representative of the Hegelian philosophy at this time (1868)

Remote locations (Peirce Edition Project)

"Paul Janet and Hegel", by W.T.Harris

http://www.iupui.edu/~peirce/writings/v2/w2/w2_12/v2_12.htm
Letter from Peirce to Harris (Jan 24, 1868)

http://www.iupui.edu/~peirce/writings/v2/w2/w2_13/v2_13.htm
"Nominalism versus Realism", by Charles Peirce

http://www.iupui.edu/~peirce/writings/v2/w2/w2_14/v2_14.htm
Letter from Peirce to Harris (Mar 16, 1868)
http://www.iupui.edu/~peirce/writings/v2/w2/w2_15/v2_15.htm
"What is Meant by 'Determined'?", by Charles Peirce

http://www.iupui.edu/~peirce/writings/v2/w2/w2_16/v2_16.htm
Letter from Peirce to Harris (April 9, 1868)

http://www.iupui.edu/~peirce/writings/v2/w2/w2_17/v2_17.htm
Letter from Peirce to Harris (Nov. 30, 1868)

http://www.iupui.edu/~peirce/writings/v2/w2/w2_20/v2_20.htm

The Journal of Speculative Philosophy Series
On the Semiotical Foundations of Logic

Questions Concerning Certain Faculties Claimed For Man (1868)
Arguments designed to establish that thought is essentially public, is a relational property of discourse and meaningful things, and is of the nature of an infinitely analyzable process. First of the series of three papers.
Located here — http://www.cspeirce.com/menu/library/bycsp/question/qu-frame.htm
- Questions on Reality (1868)
  Three drafts of the Questions paper, one of which is quite long and contains further considerations of interest as well.
  
  Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms148.htm
  Also available in another format at the Peirce Edition Project
- Potentia ex Impotentia (1868)
  Two different programmatic introductions to the Consequences paper.
  
  Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms149.htm
  Also available in another format at the Peirce Edition Project
Some Consequences of Four Incapacities (1868)
Building on the inabilities argued for as plausible hypotheses in the first paper, Peirce develops his basic model of thought as a sign-interpretational process, in explicit contrast wtih the Cartesian conception of mind. Second of the series of three papers.
Located here — http://www.cspeirce.com/menu/library/bycsp/conseq/cn-frame.htm
Grounds of Validity of the Laws of Logic: Further Consequences of Four Incapacities (1868)
Application of the foregoing in the establishment of basic logical principles: deductive, inductive, and hypothetical. Third of the series of three papers.
Remote location — http://www.peirce.org/writings/p41.html
(Brian Kariger's Peirce site)

Lectures on British Logicians
from the Harvard University Lectures of 1869-1870

Early Nominalism and Realism (MS 158: 1869)
The first of a series of University Lectures given at Harvard in 1869-1870, at the invitation of the President (Charles Eliot), on the history of logic, focusing especially on the history of British logic.
Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_31/v2_31.htm
(Peirce Edition Project)
Ockam (MS 160: 1869, in MS Word format)
The fifth in the Harvard lecture series described above.
Located here in MS Word format at http://www.cspeirce.com/menu/library/bycsp/ms160/ockam.doc
Also available in HTML format at the Peirce Edition Project website
Whewell (MS 162: 1869)
The sixth in the lecture series described above.
Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_33/v2_33.htm
(Peirce Edition Project)

Some Reviews of Special Interest

Remote locations (Peirce Edition Project)

Review of John Venn's The Logic of Chance (1867)
Peirce says: "Probability is regarded as the ratio of the number of events in a certain part of an aggregate of them to the number in the whole aggregate. . . . This last is the position of Mr. Venn and of the most advanced writers on the subject."
http://www.iupui.edu/~peirce/writings/v2/w2/w2_08/v2_08.htm
Professor Porter's Human Intellect (1869)
A review essay that includes accounts of the realist-nominalist issue in the context of Aquinas, Scotus, and Ockham and of the contemporary school of Scotch commonsensism which Porter represented.
http://www.iupui.edu/~peirce/writings/v2/w2/w2_24/v2_24.htm
The English Doctrine of Ideas (1869)
A review-essay of James Mill's Analysis of the Phenomena of the Human Mind, a classic document of British utilitarianism in its broader conception.
http://www.iupui.edu/~peirce/writings/v2/w2/w2_30/v2_30.htm
Review of Henry James, Sr.'s The Secret of Swedenborg (1871)
Peirce provides here both an exposition of James' Swedenborg and a critique of James' presentation. It appeared in the North American Review.

http://www.iupui.edu/~peirce/writings/v2/w2/w2_41/v2_41.htm
Obituary Review of Augustus de Morgan and his work (1871)
Peirce provides here a personal and professional overview of DeMorgan and his work. It appeared in the Nation in 1871.
http://www.iupui.edu/~peirce/writings/v2/w2/w2_45/v2_45.htm
Obituary Review of Charles Babbage and his work (1871)
A professional overview of Charles Babbage and his work which also appeared in the Nation in 1871.
http://www.iupui.edu/~peirce/writings/v2/w2/w2_47/v2_47.htm
Review of Fraser's The Works of George Berkeley(1871)
This long piece, published in the North American Review, is regarded as of special interest in Peirce's work because of his unorthodox account of the realist-nominalist distinction
http://www.iupui.edu/~peirce/writings/v2/w2/w2_48/v2_48.htm
- A note from Chauncey Wright in response to the above (1871)
  
  http://www.iupui.edu/%7Epeirce/web/writings/v2/w2/w2_49/v2_49.htm
- A note from Peirce in response to Wright (1871)
  
  http://www.iupui.edu/~peirce/writings/v2/w2/w2_50/v2_50.htm

Manuscript Material from the 1870's Toward a Book on Logic
See Joseph Ransdell's 2009-06-17 post to peirce-l
"truth and the 1870s logic" (thread with headers).

1869-71

MS 154 (1869) Preliminary Sketch of Logic

Located here — www.cspeirce.com/menu/library/bycsp/logic/ms154.htm
MS 164 (1869-70) Lessons in Practical Logic

Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_34/v2_34.htm
(Peirce Edition Project)
MS 165a (1869-70) A Practical Treatise on Logic and Methodology

Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_35/v2_35.htm
(Peirce Edition Project)
MS 165b (1869-70) Rules for Investigation
Introductory paragraphs for a logic text based on idea that the aim of reasoning is to arrive at a settled opinion.
Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_36/v2_36.htm
(Peirce Edition Project)
MS 165c (1869-70) Practical Logic
First formulation of inquiry as settlement of opinion with choice of methods, with only two methods recognized.
Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_37/v2_37.htm
(Peirce Edition Project)
MS 166 (1869-70) Chapter 2

Remote location — http://www.iupui.edu/~peirce/writings/v2/w2/w2_38/v2_38.htm
(Peirce Edition Project)
MS 169 (1870) A System of Logic

Remote location — http://www.iupui.edu/~peirce//writings/v2/w2/w2_40/v2_40.htm
(Peirce Edition Project)
MS 171 (Spring 1870) Notes for Lectures on Logic to be given 1st term 1870-71
Logic described as based on concept of a sign
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms171.htm

1872-73

MS 179 (winter-Spring 1872) Logic, Truth, and the Settlement of Opinion
First statement of four methods model
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms179.htm
MS 180 (Winter-Spring 1872) Investigation and the Settlement of Opinion

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms180.htm
MS 181 (Winter-Spring 1872) Chapter 1: [Four methods of settling opinion; overview of book chapters]

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms181.htm
MS 182 (Winter-Spring 1872) Chapter 1 (Enlarged Abstract)

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms182.htm
MS 183 (Winter-Spring 1872) Chapter 1 (Enlarged Abstract)
A paragraph on doubt-belief relationship
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms183.htm
MS 184 (Winter-Spring 1872) On Doubt and Belief
A very brief fragment on doubt-belief relationship
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms184.htm
MS 187 (May 1872) Chapter 1: Of the Difference between Doubt & Belief

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms187.htm
MS 188 (May-June 1872) Of Inquiry

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms188.htm
MS 189 (May-June 1872) Chapter 4: Four Methods of Settling Opinion

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms189.htm
MS 191 (summer-Fall 1872) Lecture on Practical Logic
Another brief discussion of realist vs. nominalist theory of reality, with emphasis on idealism involved in realist view

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms191.htm
MS 192 (summer-Fall 1872) How Can Thought Think of Itself?

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms192.htm
MS 194 (1872) On Reality
Realist vs. nominalist theory of reality discussed in context of question about untested hardness of a diamond
Located here — http://www.cspeirce.com/menu/library/bycsp/ms194/ms194.htm
MS 195 (Fall 1872) Chapt. 4 (2nd draft)

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms195.htm
MS 196 (Fall 1872) Chap. 4 (draft)

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms196.htm
MS 197 (Fall 1872) On Reality

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms197.htm
MS 198 (Fall 1872) On Reality

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms198.htm
MS 200 (Fall 1872) Of Reality

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms200.htm
MS 203 (Fall 1872) Of Reality

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms203.htm
MS 204 (Fall 1872) Chapter IV. Of Reality

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms204.htm
MS 205 (Fall 1872) Chapter IV. Of Reality

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms205.htm
MS 207 (Winter 1872-73) Chapter --. The List of Categories

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms207.htm
MS 212 (Winter-Spring 1873) On Representations
Three conditions of a representation; imputed qualities; ideas as representations

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms212.htm
MS 213 (Winter-Spring 1873) On Representations
More on imputed qualities; why ideas must appeal to a mind

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms213.htm
MS 214 (Winter-Spring 1873) On the Nature of Signs
More detail on the three conditions of representations, here called "signs" instead
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms214.htm
MS 215 (March 1873) [On Time and Thought]
Why thought takes time (no thought in an instant)
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms215.htm
MS 216 (8 March 1873) [On Time and Thought]
Another account of why thought takes time
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms216.htm
MS 217 (March 10, 1873) Chap 5th
Yet another accuont of why thought takes time, but this time by introducing the idea of thought as a sign requiring interpretation
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms217.htm
MS 218 (March 1873) Chap. 6th
Chiefly conncerned with causal connection between sign and object, thought and the thing to which it relates; the hardness of the diamond as what will happen under certan conditions

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms218.htm
MS 220 (March 1873) Memorandum: Probable Subjects to be treated of
A partial list of the projected chapters of the logic book at this time.
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms220.htm
MS 221 (March 1873) Chap. 7 Of Logic as a Study of Signs
Chiefly conncerned with causal connection between sign and object, thought and the thing to which it relates; the hardness of the diamond as what will happen under certan conditions.
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms221.htm
MS 229 (Spring 1873) Of the Copula
The general idea of the logical copula as the fundamental principle of the logical proposition or judgment.
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms229.htm
MS 230 (Spring 1873) Of Relative Terms
Probably best read immediately following the item below, though apparently composed prior to it.

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms230.htm
MS 232 (Spring 1873) Chap. X. The Copula and Simple Syllogism
The radical reconceiving of the copula is one way of understanding what the New List of 1867 is about, and this projected chapter is especially important for understanding why Peirce never regarded the New List as flawed by its apparently untimely reliance on the conception of the classical syllogism as in some sense fundamental in logic because of what was implicit in the discovery of the logic of relatives (quantificational logic understood in terms of operations on n-adic propositional functions).
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms232.htm
MS 233 (Spring 1873) Chap. XI. On Logical Breadth and Depth

Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms233.htm
MS 237 (July 1873) Chapter VI: The Conception of Time Essential in Logic
Logic is about an inferentially structured process, which requires time and requires that the passage in time be continuous.
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms237.htm
MS 238 (July 1873) Chapter VI: The Conception of Time Essential in Logic
A restatement of what is said in MS 237
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms238.htm
MS 239 (Summer 1873) Chapter V: That the significance of thought lies in its reference to the future
Connection of signification and practical value (i.e. anticipation of pragmatism)
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms239.htm
MS 240 (Summer 1873) Notes on Logic Book
The last item, very brief, in the material from the 1870's toward a book on logic.
Located here — http://www.cspeirce.com/menu/library/bycsp/logic/ms240.htm
Manuscript fragments editorially entitled "The Logic of 1873"
Fragmentary manuscript material toward a book on logic compiled by the editor (Arthur Burks) of Volume 7 of the Collected Papers of Charles S. Peirce, appearing therein as Chapter 5, entitled "The Logic of 1873". When all of the material from the 1870's has been made available here in a perspicuous form, this collection from it will be completely redundant (Located here)

The Popular Science Monthly Series of
Illustrations of the Logic of Science (1877-1878)

The Fixation of Belief (1877)
The doubt-belief matrix of inquiry; logic as the theory of inquiry as experientially controlled. The first of the six papers of the "Illustrations of the Logic of Science" series, regarded by Peirce as inseparable from the paper below.

Located here &mdash http://www.cspeirce.com/menu/library/bycsp/fixation/fx-frame.htm
Kuinka käsityksiä muodostetaan, trans. Markus Lång
Finnish translation of "The Fixation of Belief"
Remote location &mdash http://www.elisanet.fi/mlang/peirce-1.html
(Markus Lång's pages)
How to Make Our Ideas Clear (1878)
The "classic" statement of pragmatism, as conceived by Peirce: an experimentalist conception of symbolic meaning. The second of the six papers of the "Illustrations of the Logic of Science" series of 1877-78, regarded by Peirce as inseparable from "The Fixation of Belief".

Located here — http://www.cspeirce.com/menu/library/bycsp/ideas/id-frame.htm
Como tornar as nossas ideias claras (trans. António Fidalgo) (in PDF format)
Portuguese translation of "How to Make Our Ideas Clear"
Remote location — http://www.lusosofia.net/textos/peirce_como_tornar_as_nossas_ideias_claras.pdf
(Lusosofia.net)

The 1880s-90s

Review of F. E. Abbot's Scientific Theism (1886) (in HTML format)
Abbot's book is later--but not in this review--praised by Peirce as showing (in the Introduction) that modern science is realistic. The Introduction is available at ARISBE also, listed on the page for Peirce-related papers.
Located here — http://www.cspeirce.com/menu/library/bycsp/abbotreview.htm
Also available here in WORD format
http://www.cspeirce.com/menu/library/bycsp/abbotreview.doc
A Guess at the Riddle (1887-1888)
Characterized by the editors at the Peirce Edition Project as "perhaps Peirce's greatest and most original contribution to speculative philosophy, and it marks his deliberate turn to architectonic thought."

Located here — http://www.cspeirce.com/menu/library/bycsp/guess/guess.htm
Reasoning (c. 1889)

Located here — http://www.cspeirce.com/menu/library/bycsp/reasoning/reasoning.htm
Dmesis (1892) in HTML format
Peirce on a matter of political philosophy: the treatment of the criminal. A shockingly radical proposal is made: take the idea of rehabilitation seriously by treating them with love.
Located here — http://www.cspeirce.com/menu/library/bycsp/dmesis/dmesis.htm
Also available here in WORD format
http://www.cspeirce.com/menu/library/bycsp/dmesis/dmesis.doc
And in PDF format (a photocopy of the original)
http://www.cspeirce.com/menu/library/bycsp/dmesis/dmesis.pdf
Pythagorics (1892) in HTML format
Peirce "reports", not altogether seriously perhaps, on the re-emergence of an ancient intellectual brotherhood.
Located here — http://www.cspeirce.com/menu/library/bycsp/pythagorics/pythagorics.htm
Also available in WORD format

The Monist Series on
Metaphysics and Cosmology (1891-1893)

"The Doctrine of Necessity Examined" (1892) The second in The Monist 1891-1893 series of five papers on metaphysics and cosmology. At the time when the acceptance of a strict mechanistic determinism in natural science was widely taken for granted, Peirce puts it into question.
Located here — http://www.cspeirce.com/menu/library/bycsp/necessity/necessity.htm
"Evolutionary Love" (1893)
The last in The Monist 1893 series of five papers on metaphysics and cosmology. An impassioned and lyrical defense of a rationality model for evolution, set in sharp contrast with the Social Darwinist conception which was coming into ascendance.
Located here — http://www.cspeirce.com/menu/library/bycsp/evolove/evolove.htm

A New List of Categories, Restated

The Categories (MS 403 of 1893)
A later version (from 1893) of most of the 1867 paper "On a New List of Categories", rewritten for a different intended audience. The paper just below -- "What is a Sign?" (MS 404) -- was written as a continuation of MS 403, but deviates from the New List by attempting to define the icon/index/symbol distinction in terms of a more intuitive presentation of the category conceptions as "three states of mind".
Located here — http://www.cspeirce.com/menu/library/bycsp/ms403/categories.doc
What is a Sign? (MS404 of 1894)
One of the most intuitively helpful passages in Peirce on the topic of the nature of a sign and of several sign types. Treated by Peirce as a continuation of the popularized version above of the New List of Categories paper of 1867
Remote location — http://www.iupui.edu/~peirce/ep/ep2/ep2book/ch02/ep2ch2.htm
(Peirce Edition Project)

The 1900s

Logic, Regarded as Semeiotic: MS L75 (Carnegie application of 1902)
Two versions of a reconstructed manuscript (editorially titled) that provides an overview by Peirce himself of his system of thought, with particular focus on his logic. There is also an editorial essay on the significance and use of the document.
Located here — http://www.cspeirce.com/menu/library/bycsp/l75/l75.htm
New Elements (Kaina Stoicheia) (MS 517 of 1904)
An account of belief, judgment, and assertion in terms of the functions of the icon, the index, and the symbol in predication. Parallel topically with the early foundational paper "On a New List of Categories" of 1867.
Located here — http://www.cspeirce.com/menu/library/bycsp/stoicheia/stoicheia.htm
What Pragmatism Is (1905)
The first in The Monist 1905-1906 series of three papers on pragmatism, where Peirce distinguishes his own version -- the original version of the conception -- from that of William James and others by adopting the special name "pragmaticism" for it.
Located here — http://www.cspeirce.com/menu/library/bycsp/whatis/whatpragis.htm
Existential Graphs (MS 514 of 1909), with commentary by John Sowa
A tutorial by Peirce himself on his system of graphical notation for deductive logic, with a running commentary by John Sowa. The commenatary is extensive and still in process
Remote location — http://www.jfsowa.com/peirce/ms514.htm
(John F. Sowa's site)

Peirce-Newcomb

The Charles S. Peirce-Simon Newcomb Correspondence (in PDF format)
The correspondence is presented with an extensive biographical commentary by Carolyn Eisele, in Proceedings of the American Philosophical Society vol. 101, No. 5, 1957, pp 409-433.

POLICY

: The long-range aim is to make everything of Peirce's available here, whether actually located on the "home" server or through hypertext linkage, and to make it available gratis, where copyright permits, or at whatever access charge the copyright owner requires. — Joseph Ransdell

Queries, comments, and suggestions to

This page "WORKS BY CHARLES SANDERS PEIRCE" is part of the Arisbe website
http://www.cspeirce.com/menu/library/bycsp/bycsp.htm
Page modified by B.U. September 18, 2011, earliest on July 13, 2011 — B.U.
Last modified December 19, 2007 — J.R. (he certainly modified it later, too)

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The New List of Categories and Related Early Work

The Peirce-Harris Exchange on Hegel Peirce poses some questions to the Hegelian circle around W. T. Harris, the leading American representative of the Hegelian philosophy at this time (1868)

The Journal of Speculative Philosophy SeriesOn the Semiotical Foundations of Logic

Lectures on British Logicians from the Harvard University Lectures of 1869-1870