PLATE 8 



EXPLANATION OF FIGURES 



A to Z and 11 to III are photo micrographs of Hesperotettix viridis cells and 

 IV to IX of Mermiria bivittata. A to D and IV to VI smears, the remainder 

 sections. 



A, B, C show the appearance of multiple rings with the longitudinal split 

 and numerous clefts, D is a lateral view of a first spermatocyte metaphase show- 

 ing the multiple ring in profile and the accessory chromosome at one pole. 



E Polar views of spermatogonial metaphase with telomitic and atelomitic 

 chromosomes. 



F, G, H Profile views of hexad multiple. 



I to N Lateral views of V-shaped multiples showing characteristics of form 

 and movement. 



O Ring and V. multiples. 



P, A V-multiple with one limb out of position. 



Q to T Ring multiples in which one tetrad has the plane of its ring perpen- 

 dicular to the other. 



U, V Late stages in the movement of such rings as appear in Q to T. 

 W, X Late metaphase stage of ring multiples. 

 Y An extended V similar to that of P. 

 Z A ring multiple about to divide. 



II Anaphase condition of a V-multiple (cf. fig. 28). 



III Late anaphase condition of a divided ring. The resulting V's are double. 



IV Prophase condition of a hexad showing the accessory chromosome con- 

 densed and the tetrad thin and granular. 



V, VI Metaphase hexads showing constrictions. 

 VII, VIII Profile views of hexads. 

 IX Lateral views of mitoses X 400. 



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