FEMALE BITTERLING 



I 



f. Androstanol-^-cis-one-i J (cis-androsterone) . With 

 concentrations of i/ie, 3^, /4' /^ ^nd i mg per 750 ml 

 water the following growth-curves were obtained (Fig. 25). 

 The characteristics of these curves are:— 



Latent period, i hour. Growth ends after 1 1 hours. 



g. Androstanol- ^-trans-one- 1 J (trans-androsterone) , 



A.U. 



Fig. 26. Ovipositor growth curves after administration of 

 trans-androsterone. 



A.U. 



Fig. 27. Ovipositor growth curves after administration of 

 cis-dihydro- testosterone. 



