Abnormalities of Reproductive System found in Frogs. 
% 
257 
List oF FIGURES, FROM PHOTOGRAPHS AND MICROPHOTOGRAPHS, 
Plate I., Fig. 1, Case I. 
Plate II., 
Plate IIL,, 
Plate IV., 
Plate V., 
Plate VL, 
Plate VIT., 
Plate VIIL., 
Plate IX., 
Plate X. 
Plate XI., 
la, 9) 
2, 99 
Does 53 
3a, b} 
4, Case IT. 
5, ” 
Gres, 
7, Case IIT. 
) 99 
8, 
8a, 
9, 9) 
10, Case LV, 
11, ” 
12, ” 
13, Case V. 
4s A 
15, bb) 
162 Case VI. 
16a, + 
Vee 
18, ” 
19, Case VII, 
20, 3) 
21, a 
22. The pigment of a normal mature ovum. 
Showing Miillerian ducts and seminal vesicles. 
Section of right gonad. x15. 
Section of left gonad, showing included ovum within a seminal 
tubule. x12. . 
The ovum. x 100. 
The fore-limbs, 
The left gonad. 
Section of the middle spermatic lobule, showing included 
pigment and aggregation of spermatozoa. x 20. 
The Mullerian ducts and seminal vesicles. 
Section of right gonad. x 20. 
Do, Showing ovum in the process of becoming included. x 15. 
Section of right gonad, showing ova amid the spermatic 
tissue. x 12. 
The gonads. 
Section of right gonad. x13. 
Section of right gonad, showing ovum lying between the 
seminal tubules, and also ovarian pigment along the lines 
of the intertubular connective tissue. x 80. 
Section of left gonad and kidney. Ovarian pigment is shown 
within the kidney. x 30. 
$ 
The Miillerian ducts and seminal vesicles. 
Section of right gonad, showing ovum within a seminal tubule 
and surrounded by deformed spermatozoa. x 50. 
Section of left gonad, showing normal testis-portion and 
discrete and pathological ovary-portion. x 15. 
Section of right gonad, showing ovarian pigment. x 30. 
Section of left gonad. x 30. 
x 500. 
23. The chromatophores upon the peritoneum covering a normally pigmented 
testis. 
24, The pigment of an ovo-testis, identical with that of anormal ovary, x 500. 
(Issued separately, 29th April 1921.) 
