Photoreception 443 



66. Hartline, H. K., /. Cell. & Comp. Physiol. 5:229-247 (1934). Excitation 

 studies in single visual elements. 



67. Hartline, H. K., Cold Spring Harbor Symp. 3:245-250 (1935). Electrical 

 studies of single visual elements: Limulus. 



68. Hartline, H. K., Am. ). Physiol 121:400-415 (1938). Responses of single 

 optic nerve fibers : frog. 



69. Hartline, H. K., /. Opt. Soc. Am. 30:239-47 (1940). Response of single visual 

 elements. 



70. Hartline, H. K., Harvey Lect. 37:39-68 (1941). Neural mechanisms of 

 vision: review. 



71. Hartline, H. K., and Graham, C. H., /. Cell. & Comp. Physiol. 1:277-295 

 (1932). Response of single visual receptor: Limulus. 



72. Hartline, H. K., and McDonald, P. R., /. Cell. & Comp. Physiol. 39:225-254 

 (1947). Adaptation in single visual elements: Limulus. 



73. Hartline, H. K., and Wilska, A., Am. ). Physiol. 133:491-492 (1941). Origin 

 of "off-response" in optic pathway: Limulus. 



74. Hecht, S., /. Gen. Physiol. 1:545-558 (1919). Dark adaptation: Mya. 



75. Hecht, S., /. Gen. Physiol. 1:657-666 (1919). Latency of photic response: Mya. 



76. Hecht, S., /. Gen. Physiol. 1:667-686 (1919). Temperature effect on photic 

 response: Mya. 



77. Hecht, S., /. Gen. Physiol. 2:229-246 (1920). Photochemical nature of photic 

 response: Mya. 



78. Hecht, S., /. Gen. Physiol. 2:337-348 (1920). Intensity effect on photorecep- 

 tion: Mya. 



79. Hecht, S., J. Gen. Physiol. 3:1-13 (1921). Bleaching of visual purple. 



80. HEcm,S.,]. Gen. Physiol. 3:285-290(1921). Bleaching of visual purple. 



81. Hecht, S., /. Gen. Physiol. 3:375-389 (1921). Action spectra: Mya. 



82. Hecht, S., ]. Gen. Physiol. 6:731-740(1924). Bleaching of visual purple. 



83. Hecht, S., /. Gen. Physio/. 11:657-672(1928). Action spectra of photosensitive 

 system: Pholas. 



84. Hecht, S., Physiol. Rev. 17:239-290 (1937). Chemical basis of vision. 



85. Hecht, S., Chase, A. M., and Shlaer, S., Science 85:567-568 (1937). Molecular 

 size of visual purple. 



86. Hecht, S., Chase, A. M., Shlaer, S., and Haig, C, Science 84:331-333 (1936). 

 Regeneration of visual purple. 



86a. Heinbecker, P., Am. ). Physiol. 117:686-700 (1936). Electrical activity of 

 Limulus heart ganglion. 



87. Hess, W. N., /. Morph. 41:63-93 (1925). Photoreceptors of Lumbricus. 



88. Holmes, G., and Lister, W. T., Brain 3:34-73 (1916). Cortical representation 

 of vision. 



89. Holmgren, F., llnters. Physiol. Inst. Univ. Heidelh. 2:81-88 (1872-82). Con- 

 cerning visual purple and retinal currents. 



90. Homann, H., Ztschr. vergl. Physiol. 1:541-578 (1924). Function of ocelH: 

 insects. 



91. Homann, H., Ztschr. vergl. Physiol. 20:420-429 (1934). On the physiology of 

 the spider's eye. 



92. Householder, A. S., and Landahl, H. D., Math. Bioph. Mon. Ser. 1, 124 pp. 

 (1945). Mathematical biophysics of the central nervous system. 



93. Hyman, L., The Invertebrates: Protozoa through Ctenophora (1940). New York, 

 McGraw-Hill. 



94. Imms, H. D., Textbook of Entomology (1935). London, Methuen. 



95. Jahn, T. L., /. New York Ent. Soc. 54:1-8 (1946). Action spectrum measure- 

 ments using the electroretinogram. 



96. Jahn, T. L., /. Opt. Soc. Am. 36:76-82 (1946). Visual critical flicker frequency 

 as a function of intensity. 



97. Jahn, T. L., /. Opt. Soc. Am. 36:83-86 (1946). Brightness discrimination and 

 visual acuity as functions of intensity. 



98. Jahn, T. L., /. Opt. Soc. Am. 36:595-597 (1946). Color vision and color bhnd- 

 ness. 



