THE GONADOTROPIC HORMONES 



TABLE 2 



The Gonadotropic Potency of the Anterior Pituitary 

 IN Relation to Sex* 



Animal Serving 

 AS Donor 



Assay Method 



Conclusion as to Potency 

 IN Terms of 



Gonado- 

 tropic 

 Hormone 



Follicle- 

 Stimu- 

 lating 

 Hormone 



Luteinizing 

 Hormone 



Adult frog 



{Rana pipiens) . 



Adult salamander 

 ( Triturus viri- 

 descens) 



Fowl 



Adult guinea pig. 



Adult guinea pig. 



Rat: 27-30 days 

 old 



Adult rat 



Adult rat 



Adult rat 



Ovulation in 

 frog 



Oviposition in 

 T. viridescens 



Hypertrophy of 



fowl testis 

 Ovarian effects 



in immature 



guinea pig 

 Ovarian change 



in immature 



rat 

 Ovarian change 



in immature 



rat 

 Ovarian change 



in immature 



rat 



Appearance of 

 ovarian trans- 

 plant 



Ovarian change 

 in immature 

 rat with or 

 without pro- 

 lan or extract 

 of urine of 

 menopause 



&^ 9 

 d^> 9 



'Absent" 

 in d^ 

 and 9 



o^>9 



d^>9 

 9>9 



9>c?t 



^>9 



Rugh (1937) 



Adams and 



Mayo 



(1936) 

 Domm 



(193 1-3.1) 

 Schmidt 



(1937) 



Lipschiitz 



(1937) 



McQueen- 

 Williams 



(1935)* 

 Lipschiitz 

 and 

 Villagran 



(1937) 

 Pfeiffer 



(1936) 



Leonard 



(1937^ 



* See also Table V, p. 143, of earlier volume. 



t In terms of concentration. After castration the male pituitary increases in size. Gonadectomized 

 animals are indicated by ^ or isf. 



tThe author believed that the pituitary of the normal male secretes only follicle-stimulating 

 hormone. 



§ Castrated at birth. 



77 



