1 - 2 June 1869, "On Mr. H. Spencer's Theory of the Gradual Transformation of Utilitarian into Intuitive Morality by Hereditary Descent"
2 - 14 July 1869, "The Common Sense Philosophy of Causation"
3 - 17 November 1869, "The Views of Hume, Kant, and Whately upon the Logical Basis of the Doctrine of the Immortality of the Soul"
4 - 15 December 1869, "On Memory as an Intuitive Faculty"
5 - 12 January 1870, "The Moral Condition of Savages"
6 - 9 February 1870, "What is Matter?"
7 - 16 March 1870, "On the Theory of a Soul"
8 - 27 April 1870, "The Verification of Beliefs"
9 - 15 June 1870, "Is There Any 'Axiom of Causality'? "
10 - 13 July 1870, "The Relativity of Knowledge"
11 - 8 November 1870,"Has a Frog a Soul; and of What Nature is That Soul, Supposing it to Exist?"
12 - 13 December 1870, "On the Emotion of Conviction"
13 - 11 January 1871, "What is the Relation of the Will to Thought?"
14 - 8 February 1871, "On the Nature and Origin of the Moral Ideas"
15 - 14 March 1871, "On the Absolute"
16 - 25 April 1871, "Theorem: The Range of Intellectual Conception is Proportioned to the Rank in Animated Life"
17 - 16 May 1871, "Evidence"
18 - 13 June 1871, "Mr. Herbert Spencer on Moral Intuitions and Moral Sentiments"
19 - 11 July 1871, "What is Death?"
20 - 21 November 1871, "On the Words 'Nature;' 'Natural,' and 'Supernatural'"
21 - 19 December 1871, "Do We Form Our Opinions on External Authority?"
22 - 17 January 1872, "What is Common Sense?"
23 - 13 February 1872, " Wherein Consists the Special Beauty of Imperfection and Decay?"
24 - 12 March 1872, "Are Numbers and Geometrical Figures Real Things?"
25 - 9 April 1872, "The Arguments for a Future Life"
26 - 14 May 1872, "That Legitimate Authority is an Evidence of Truth"
27 - 11 June 1872, "Is God Unknowable?"
28 - 9 July 1872, "On the Supposed Necessity of Certain Metaphysical Problems"
29 - 12 November 1872, "Five Idols of the Theatre"
30 - 10 December 1872, "Can Experience Prove the Uniformity of Nature?"
31 - 14 January 1873, "Darwinians and Idealists"
32 - 11 February 1873, "The Nature and Authority of Miracle"
33 - 11 March 1873, "Faith and Knowledge"
34 - 8 April 1873, "On Will"
35 - 13 May 1873, "The Action of So Called Motives"
36 - 10 June 1873, "A Diagnosis and Prescription"
37 - 8 July 1873, "Euthanasia"
38 - 8 July 1873, "Oral Communication on Euthanasia"
39 - 18 November 1873, "On the Relation of the Organic and Inorganic Worlds"
40 - 16 December 1873, "Utilitarianism"
41 - 13 January 1874, "The Speculative Method"
42 - 10 February 1874, "The Metaphysical Basis of Toleration"
43 - 10 March 1874, "Some Thoughts on Necessary Truth"
44 - 14 April 1874, "Latent Thought"
45 - 12 May 1874, "The Personality of God"
46 - 9 June 1874, "On the Nature of Things in Themselves"
47 - 14 July 1874, "A Reply on Necessary Truth?"
48 - 17 November 1874, "On the Doctrine of Human Automatism"
49 - 8 December 1874, "Can Truths be Apprehended Which Could not Have Been Discovered?"
50 - 12 January 1875, "On a Theory of Dr. Newman's as to Believing in Mysteries"
51 - 9 February 1875, "Will and Responsibility"
52 - 9 March 1875, "The Scientific Basis of Morals"
53 - 13 April 1875, "Hospitals for Incurables Considered from a Moral Point of View"
54 - 11 May 1875, "Theorem: Social Policy Must Be Based on the Scientific Principle of Natural Selection"
55 - 8 June 1875, "The Right of Man over the Lower Animals"
56 - 13 July 1875, "The Theory of Evolution in its Application to Practice"
57 - 9 November 1875, "Remarks on the Proof of Miracles"
58 - 14 December 1875, "On the Fallacies of Testimony in Relation to the Supernatural"
59 - 11 January 1876, "The Evidence of the Miracle of the Resurrection"
60 - 14 March 1876, "The Pre-Suppositions of Miracles"
61 - 11 April 1876, "The Ethics of Belief"
62 - 9 May1876, "The Persistence of the Religious Feeling"
63 - 13 June 1876, "What is the Good of Truth?"
64 - 11 July 1876, "What is a Lie?"
65 - 14 November 1876, "How Do We Come by Our Knowledge?"
66 - 12 December 1876, "The Effect of a Decline of Religious Belief on Morality"
67 - 9 January 1877, "The Soul before and after Death" Part I
68 - 13 February 1877, "The Soul before and after Death" Part II
69 - 13 March 1877, "Authority in Matters of Opinion"
70 - 17 April 1877, "The Supposed Conflict between Efficient and Final Causation"
71 - 8 May 1877, "Matter and Force"
72 - 12 June 1877, "Belief and Evidence"
73 - 10 July 1877, "On Ideas as a Force"
74 - 13 November 1877, "On the Relation of Evidence to Conviction"
75 - 11 December 1877, "Various Definitions of Materialism"
76 - 15 January 1878, "The Relation of Psychogony to Metaphysics and Ethics"
77 - 12 February 1878, "Double Truth"
78 - 9 April 1878, "Has a Metaphysical Society any Raison d'etre?"
79 - 11 June 1878, "The Ethics of Persecution"
80 - 9 July 1878, "The Limits of Philanthropy"
81 - 12 November 1878, "Is Monism Tenable?"
82 - 17 December 1878, "Is 'Lapsed Intelligence' a Probable Origin for Complex Animal Instincts?"
83 - 14 January 1879, "Incoherence of Empirical Philosophy"
84 - 11 February 1879, "On the Utility of Truth"
85 - 11 March 1879, "The Uniformity of Nature"
86 - 8 April 1879, "The Religion of Emotion"
87 - 27 May 1879, "The Objective Certainty of the Immaterial World"
88 - 10 June 1879, "The Social Factor in Psychology"
89 - 25 November 1879, "What is Philosophy?"
90 - 9 December 1879, "Is Causation or Power in Nature a Reality, or a Mere Anthropomorphic Fancy?"
91 - 13 January 1880, "What Are the Elements of a Sensation?"
92 - 10 February 1880, "The Scope of Metaphysics"
93 - 9 March 1880, "Generic and Symbolic Images"
94 - 13 April 1880, "The Relation of Metaphysics to the Rest of Philosophy"
95 - 11 May 1880, "The Recent Phase of the Free-Will Controversy"