112 



central red mass of chromatin. They are about 14/1 

 in length, with one end often more pointed than the 

 other. 



Wash off the oil with xylol, dry and label. 



Fig. 46. Sections of Salivary Glands, shewing differences between 



the Middle and Lateral Glands and between those of 



Anophelines and Culex, also Sporozoits in the 



Glands of an Anopheline 



THE REPRODUCTIVE SYSTEM 



To Examine the Spermatbeca. With the needle 

 cut off the extreme tip of the abdomen the last or 

 eighth segment only. Place this in a very small drop 

 of salt solution, and tease the fragment carefully apart. 

 A small pea-like body (in Culex, three) will be seen. 

 Isolate this (the spermatheca) as much as possible from 

 other tissue and cover with a coverglass (Fig. 47). 



Spermatozoa. Observe, under a low power, the 

 brown chitinous spermatheca and its duct. Press 



