PART I: SENSORY SPECIFICATION
1. Aristotle on the Five Senses, ca. 350 B.C.
2. Isaac Newton on the Seven Colors of the Spectrum, 1675
3. Isaac Newton on the Color Circle, 1704
4. Thomas Young on Newton and the Excitation of the Retina by Colors, 1802
5. John Locke on Primary and Secondary Qualities, 1690
6. Charles Bell on Spinal Nerve Roots, 1811
7. François Magendie on Spinal Nerve Roots, 1822
8. Charles Bell on the Specificity of Sensory Nerves, 1811
9. Johannes Muffler on the Specific Energies of Nerves, 1838
10. Ernst Heinrich Weber on the Sense of Touch and Common Sensibility, 1846
11. Hermann Ludwig Ferdinand von Helmholtz on the Three-Color Theory of Vision and Visual Specific Nerve Energies, 1860
12. Hermann Ludwig Ferdinand von Helmholtz on the Resonance Theory of Hearing and Auditory Specific Nerve Energies, 1863
13. Max von Frey on the Four Cutaneous Senses, 1904
14. Edward Bradford Titchener on the Number of Sensory Elements, 1896

PART II: PSYCHOPHYSICS AND SENSORY MEASUREMENT
15. Pierre Bouguer on the Differential Threshold for Illumination, 1760
16. Charles Eduard Joseph Delezenne on the Differential Threshold for the Pitch of Tones, 1827
17. Ernst Heinrich Weber on Weber's Law, 1834
18. Gustav Theodor Fechner on Fechner's Law, 1860
19. Joseph Antoine Ferdinand Plateau on the Measurement of Sensation, 1872
20. Joseph Rémi Leopold Delboeuf on Sensed Contrast as the Measure of Sensation, 1883
21. Edward Bradford Titchener on the Sense Distance as the Measure of Sensation, 1905

PART III: THE RETINAL IMAGE AND THE ORIENTATION OF PERCEIVED OBJECTS
22. Epicurus on Perception of Objects as Mediated by the Images that Emanate from the Objects, ca. 300 B.C.
23. Johannes Kepler on the Crystalline Humor as a Lens and the Inversion of the Retinal Image, 1604
24. William Molyneux on the Inverted Retinal Image, 1692
25. Johannes Miller on Subjective Visual Size and Position in Relation
to the Retinal Image, 1826
26. George Malcolm Stratton on Visual Localization and the Inversion of the Retinal Image, 1897

PART IV: THE VISUAL PERCEPTION OF SIZE AND DISTANCE
27. René Descartes on the Visual Perception of Size, Shape, and Distance, 1638
28. George Berkeley on the Visual Perception of Distance and Magnitude, 1709
29. Charles Wheatstone on Binocular Parallax and the Stereoscopic Perception of Depth, 1838

PART V: NATIVISTIC AND EMPIRISTIC THEORIES OF SPACE PERCEPTION
30. Immanuel Kant on the A Priori Nature of Space, 1781
31. Rudolf Hermann Lotze on Local Signs in Their Relation to the Perception of Space, 1852
32. Ernst Heinrich Weber on Sensory Circles and Cutaneous Space Perception, 1852
33. Ewald Hering on the Nativistic Theory of Visual Space Perception, 1864
34. Hermann Ludwig Ferdinand von Helmholtz on Empiricism in Perception, 1866
35. Max Wertheimer on the Phi Phenomenon as an Example of Nativism in Perception, 1912

PART VI: OBJECTIVE REFERENCE
36. George Berkeley on the Role of Association in the Objective Reference of Perception, 1709
37. Thomas Reid on the Distinction between Sensation and Perception, 1785
38. Thomas Brown on Sensation, Perception, and the Associative Explanation of Objective Reference, 1820
39. John Stuart Mill on the Permanent Possibilities of Sensation, 1865
40. Hermann Ludwig Ferdinand von Helmholtz on Perception and the Unconscious Conclusion, 1866
41. Edward Bradford Titchener on the Context Theory of Meaning, 1910
42. Edwin Bissell Holt on Response as the Essence of Cognition, 1915
43. Max Wertheimer on Objects as Immediately Given to Consciousness, 1923

PART VII: CEREBRAL LOCALIZATION
44. René Descartes on the Interaction of Mind and Brain, 1650
45. Franz Joseph Gall on Phrenology, the Localization of the Functions of the Brain, 1825
46. Pierre Jean Marie Flourens on the Functions of the Brain, 1824
47. Paul Broca on the Speech Center, 1861
48. Gustav Fritsch and Eduard Hitzig on Cerebral Motor Centers, 1870
49. John Hughlings Jackson on Dissolution of the Nervous System, 1884
50. Shepherd Ivory Franz on the Variability of the Motor Centers, 1915
51. Karl Spencer Lash!ey on Cerebral Equipotentiality and Mass Action, 1929
52. Henry Head on Vigilance, 1926

PART VIII: PSYCHOPHYSIOLOGICAL ISOMORPHISM
53. Ewald Hering: Anticipation of Psychophysiolgical Isomorphism, 1878
54. Georg Elias Muller on the Psychophysical Axioms, 1896
55. Max Wertheimer on the Isomorphic Relation between Seen Movement and Cortical Short Circuit, 1912
56. Wolfgang Kohler on Isomorphism, 1920

PART IX: THE REFLEX
57. René Descartes on Mechanism in Human Action, 1662
58. Julien Offray de la Mettrie on the Extension of Mechanism to the Human Soul, 1748
59. David Hart!ey on Voluntary and Involuntary Action, 1749
60. Robert Whytt on Empirical Reflexology, 1751
61. George Prochaska on the Nervous System, 1784
62. Marshall Hall on the Spinal Nervous System, 1843, 1850
63. Ivan Miehailovieh Seehenov on Reflexology and Psychology, 1863
64. John Dewey against Reflexology, 1896

PART X: ASSOCIATION
65. Aristotle on the Associative Nature of Memory, ca. 350 B.C.
66. Thomas Hobbes on the Train of Thought, 1651
67. John Locke on Disorders of the Mind, 1700
68. George Berkeley on Arbitrary Connections among Ideas, 1733
69. David Hume on a Psychological Analogue of Gravitation, 1739
70. David Hartley on Association: Successive and Simultaneous, Simple and Complex, 1749
71. Thomas Brown on the Secondary Laws of Association, 1820
72. James Mill on Mental Mechanics, 1829
73. John Stuart Mill on Mental Chemistry, 1843
74. Herbert Spencer on Intelligence, 1855
75. William James on the Limitations of Associationism, 1890
76. Wilhelm Wundt on Psychological Analysis and Creative Synthesis, 1896

PART XI: EVOLUTION AND INDIVIDUAL DIFFERENCES
77. Charles Robert Darwin on the Theory of Evolution, 1859
78. Francis Galton on the Inheritance of Intelligence, 1869
79. Francis Galton on Mental Capacity, 1883
80. James McKeen Cattell on Mental Tests, 1890
81. Alfred Binet and Victor Henri on the Psychology of Individual Differences, 1895
82. Hermann Ebbinghaus on the Completion Test, 1897
83. Stella Emily Sharp on a Test of Mental Testing, 1899
84. Clark Wissler on the Inadequacy of Mental Tests, 1901
85. Charles Edward Spearman on General Intelligence, 1904
86. William Stern on the Mental Quotient, 1912

PART XII: COMPARATIVE PSYCHOLOGY
87. George John Romanes on Comparative Psychology, 1882
88. Conwy Lloyd Morgan on Lloyd Morgan's Canon, 1894
89. Jacques Loeb on Associative Memory, 1899
90. Herbert Spencer Jennings on the Continuity of Psychological Processes, 1906

PART XIII: FUNCTIONALISM
91. William James on the Function of Consciousness, 1890
92. James Mark Baldwin on the Psychology of Children, 1895
93. James Rowland Angell on Functionalism, 1906
94. John Broadus Watson on Behaviorism, 1913

PART XIV: LEARNING
95. Hermann Ebbinghaus on the Learning of Nonsense Syllables, 1995
96. Mary Whiton Calkins on the Learning of Paired Associates, 1896
97. Edward Lee Thorndike on Animal Learning, 1898
98. Robert Mearns Yerkes on the Intelligence of the Turtle, 1901
99. Willard Stanton Small on the Maze, 1901
100. Edward Lee Thorndike and Robert Sessions Woodworth on Transfer of Training, 1901
101. Ivan Petrovich Pavlov on Conditioned Reflexes, 1904
102. Wolfgang Kohler on the Insight of Apes, 1917

PART XV: