162 



Sex- Reversal in Fror/s and Toads 



The primary sex-glands of these abnornud individuals. 



Spermatic and ovarian tissues were present, as noted in the tabu- 

 lated List of Cases, separately and in combination, in the following 

 grades. 



Sp. Spermatic tissue. Ov. Ovarian tissue. ? Details not available. ^J As in the male. 



5 As in the female. - Less than. Much less than. Very much less than. 



Abs. Absent. Et Eight, Lt Left. 



