WORMS. 409. 
The Maw-worm in the dog is about an inch in length (jig. 1), 
of a milky white colour, with one end cut off obtusely and slightly 
puckered (the mouth), and the other pointed (the tail), Maw- 
worms exist in great numbers in the dog, chiefly occupying the 
large intestines, and have been usually considered not to injure the 
Fig. 1. 
health to any great degree, unless they exist in very large numbers ; 
but Dr. Cobbold is of opinion that they are merely sections of the 
tape-worm, and if so, the above opinion must be erroneous. The 
subject is one which requires a special study, and I must there- 
fore accept Dr. Cobbold’s statement without dispute. 
The Round-worm (Ascaris lumbricoides) is from four to seven 
inches long, round, firm, and of a pale pink colour. The two ex- 
‘tremities are exactly alike, and are slightly flattened in one direc- 
tion at the point (see fig. 2), in which @ shows the worm extended, 
