XVI 



EXPLANATION OF PLATES. 



PLATE XXV. CORNEA AND CHOROID. 



FJG (To facef. 106.) 



1. V. S. of the cornea. 



2. Corneal corpuscles stained with gold chloride. 



3. Cell-spaces in cornea after silver nitrate. 



4. Lens-fibres (man or dog). 



5. Lens-fibres (cod-fish). 



6. Branched pigment-cells of the choroid. 



7. Hexagonal pigment-cells of the retina. 



PLATE XXVI. RETINA AND CILIARY MUSCLE. 



(To face p. no.) 



1. V. S of the retina (cat) (L). 



2. V. S. of the retina (frog) (H). 



3. Cones of retina of a codfish (H). 



4. Ciliary muscle (L). 



PLATE XXVII. NOSE AND COCHLEA. 



(To face p. 114.) 



1. V. S. of the nasal mucous membrane (H). 



2. Isolated epithelial cells of the olfactory region (H). 



3. T. S. of a turn of the cochlea (L). 



4. Part of fig. 3 with (H). 



PLATE XXVIII. TESTIS, OVARY. 



(To facef. 118.) 



1. T. S. testis (L). 



2. Part of a seminal tubule with developing spermatozoa (H). 



3. T. S. of the epididymis (L). 



4. Part of a tubule of the epididymis (H). 



5. A spermatozoon. 



6. V. S. of the ovary (L). 



PLATE XXIX. OVARY, FALLOPIAN TUBE, UTERUS. 



(To face p. 120.) 



1. T. S. of a Graafian follicle with an ovum (H). 



2. V. S. of an ovary (H). 



3. T. S. of a uterus (L). 



4. T. S. and V. S. of the uterine glands (H). 



5. T. S. of part of a Fallopian tube (H). 



PLATE XXX. MAMMA, MILK, PLACENTA. 



(To face p. 122.) 



1. Alveoli of a mammary gland (H). 



2. Milk fresh and after acetic acid (H). 



3. Placental villus (L). 



4. Placental villus ( H). 



5. T. S. of the umbilical cord (L). 



6. Part of fig. 5 with (H). 



