RETINA OF LATERAL EYES OF SPHENODON PUNCTATUS. 325 
23. Osawa, G. — “ Beitrage zur Lelire von des Sinnesorganen der 
Hatteria punctata,” ‘Arcli. f. mikr. Anat. und Entwickl.,’ Bd. Iii, 
1898. 
24. “Ueber die Fovea Centralis von Hatteria punctata. 
Eine Erwiderung an Prof. Kallius in Gottingen,” ‘ Anat. Anz.,’ 
Bd. xv. 
25. Payne, F. — “ Eyes of Blind Vertebrates, of N. A. VII. The Eyes 
of Amphisbsena punctata (Bell Blind Lizard, Cuba),” ‘Biol. 
Bull.,’ vol. xi, No. 2, 1906. 
26. Retzius, G. — “ Zur Kenntniss vom Bau der Selachier Retina,” 
‘Biol. Untersuch.,’ N. f., Bd. xii, No. 5, 1905. 
27. Shafer, G. D.— Vide 13. 
28. Verhoeff, F. H. — “ A hitherto Undescribed Membrane of the Eye 
and its Significance,” ‘Boston Med. Surg. Journ.,’ vol. cxlix, 1903. 
The Following Text-Books have also been Consulted for 
General Accounts of the Retina : 
29. Gamgee. — ‘ Text-Book of Physiological Chemistry of the Animal 
Body,’ Macmillan, 1880, vol. i, p. 454. 
30. Gaupp. — A. Ecker’s and R. Wiedersheim’s ‘ Anatomie des Frosckes,’ 
Friederich Vieweg & Solin, 2 Aufl., 1904, vol. iii, p. 807. 
31. Halliburton. — ‘ Text-Book of Chemical Physiology and Pathology,* 
Longmans Green & Co., 1891, p. 456. 
32. Quain. — ‘Anatomy,’ vol. iii, Part II, 11th ed., 1909, p. 225. 
33. Schafer. — * The Essentials of Histology,’ Longmans Green & Co., 
6th ed., 1902, p. 369. 
EXPLANATION OF PLATES 27—29, 
Illustrating Freda Bage's paper “On the Histological 
Structure of the Retina of the Lateral Eyes of 
Sphenodon punctatus, with Special Reference to 
the Sense-Cells. ” 
Reference Letters. 
/. Nerve-fibre layer of retina. 2. Ganglion-cell layer of retina. 3. 
Inner molecular layer of retina. 4. Inner nuclear layer of retina. 5. 
Outer molecular layer of retina. 6“. Outer nuclear layer of retina. 
7. Layer of sense-cells. 8. Layer of pigment epithelium. D.C. Double 
