REACTION TO STEROID HORMONES 



23, 



With concentrations of Ys, %, Yz and i mg per 750 ml 

 water the following growth-curves were obtained (Fig. 26). 

 The characteristics of these curves are:— 



Latent period, i hour. After 12 hours growth still con- 

 tinues. 



h. Androstanol- 1 y-cis-one-^ (cis-dihydvo-testostevone). 

 With concentrations of ^, Y^, Y2 and i mg per 750 ml 

 water the following growth-curves were obtained (Fig. 27).. 

 The characteristics of these curves are:— 

 • Latent period, i hour. Growth ceases after 10 hours. 



10 12 



hoqrs 



Fig. 28. Ovipositor growth curves after administration of 

 trans-dihydro- testosterone. 



AU 



Fig. 29. Ovipositor growth curves after administration of 

 androstanediol. 



