Embryology. 



^Z2> 



IX. 



XI. 



XII. 



conjugation of the nronnrlp; t ^''■"'"'^'"s more highly magnified. The 



sphirfs and achromS Uc sp nd 1 tFthS ^nre"'"";'''" '" ^'!, ^1,2 attraction! 

 VI., and VII. spinaie, although present, are not depicted in IV., V., 



system ofgranuiswitrcbresrldhtmo- from ;r"'''? ^°Tl"^ ^ spindle-shaped 

 spheres) ; t1,e chro^at.n forZ'L'l'SoZT^I'^trtl'p^^^^^^^^^ 



'""ofl^^T^^'Sd nu^ief'i^n^i'rhe^sT-^.^^^^^^^^ °^ V^« '^"■"-^t- fibre, 



spheres. Compare again pt ,6 G /-^ I^T' rad,.tmg from the attraction- 

 c.e., central particle. ^ ^' ^^ ' * " ^ P"'*"" '^'r'^'e ! ^-^m equatorial circle ; 



^of^the^^f^T'"^''"^ °^ ^t"^ chromatin filament., 

 of the attraction-spheres has divided into two. 



""dau^h^tertuXf '"TL'sTafI\t^r°m;:!5 ^^'bTeforrh''^^ ^'-^'"^f '"«= »- 

 protoplasm of the ovum is becoming dividend achromafn. The general 



nected with the periphe:^ of'the ceu1L^i7il,e^C/- t fh'^i'rgfn'i'J'or pi^:n"t 



Each of the central particles 



