112 
central red mass of chromatin. They are about 14/x 
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 Spermatheca .—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 
