Studies on Chromosomes 



173 



** , 



**& ft 



% 



h 



- 



r{ 



m 



' ' 



J 



'/ 



FIG. 9 



26-chromosome forms, four supernumeraries 

 a-g, first polar, supernumeraries large and equal; a-d, fern., No. 42; e, gran., No. 55; /, gran., No. 



59! & gran., No. 60. 



h-j first polar, from (fern., No. 40, with two large supernumeraries and two small; all of these are 

 shown in;', (cf. Fig. 2,;), while in h and / one is missing (see p. 186). 



k, first polar, term., No. 36; / from same individual (Photo 9). 



m-o, spermatogonia groups; m, fern., No. 42, abnormal group with 27 chromosomes; n, o, fern., 

 No. 40. showing two small supernumeraries. 



p-q, ovarian groups, gran. No. 61. 



