364 



THE UNFERTILISED EGG AS A 



[PT. Ill 



100 



90 



€1 

 -0% 



70- 



M, 



Ca, 

 6 



• — ■ «..;« 



of continuous phase and the percentage dry weight of the system. Bia 

 lascewicz's tables give 

 the concentration in 

 percentages of the prin- 

 cipal ions in the inter- 

 miceliar liquid of dif- 

 ferent eggs, and these 

 are conveniently sum- 

 marised in Fig. 19, 

 taken from his paper. 

 From this it is obvious 

 that all the eggs studied 

 have about the same 

 proportion of potas- 

 sium, but that the other 

 ions are rather variable. 

 There is much more 

 calcium, relatively, in 

 the continuous phase 

 of the yolk of the hen's 

 egg than in that of any 

 of the others except the 

 crustacean Maia verru- 

 cosa. Similarly, there is 

 more magnesium, relatively, in that of the frog than in any other egg. 

 A very interesting comparison may be made between the distribution 

 of ions in the continuous phase of the eggs and that in the serum of 



Table 50. Bialascewicz's figures. 



0-1 0-2 0-3 



Concentration of the bhree elements in 

 the continuous phase (mgrnt per cc) 



Fig. 18. 



0-4 



