u 



i or v ; L ■•\.-\c swellings on the outer surface, ana his 



one section is very inconclusive. Unfortunately, I have no 



the esc of 

 surface views of A any of these structures. The folio 



year, Ransom reported i si i I formation in the unimpreg- 



s of the Pike. These "showed a lobulation of the 

 concentrated formative yelk, a sort of irregular asymmetrical 

 r age". After twenty-five hours, "portions of the discus 



proligertyas were pinched off and appeared as projecting buds", 



TT is reported in 1899 that unfertilized Salmon and Trout . 

 after lying in water four weeks for i >ck6 on the sur- 



face of t iiec by the outpushing of fluid drops 



under the surface i r . "either he nor a 



figures, ig, , irious observations 



As to the further fate of the blastodisc - 'eg- 



nated egg of - fish, I can only say that it flattens 



out and finally disappears. - . , PI. II, is a central 



ion through a blastodisc twenty-six and one-half hours 

 old, which shows this flatten!: . ""igurepl on the s . 

 plate shows a blastodisc taken from a lot of eggs in the in- 

 vagination stage (40-48 hours). It is much lar its 

 lower surface is comparatively free from yolk. The cont 

 is evidently due to the fact that on is been lying free 

 in the sea water, while the other has been under more favor- 



