DISEASES AND PESTS, 331 
He says: “In July and August especially (but at all 
times of the year) lice abound more than at any other 
time, and chicks will become infested with them unless 
great care is taken. Many persons wonder why their 
young chicks droop and die, mope around for a week or 
two, all the time getting thinner and weaker, finally be- 
come unable to stand, and die—these persons claiming 
all the time that ‘lice is not the cause of it,’ because 
they have searched under the wing for the red or yellow 
| 
FIG. 133. THE TICK, MITE, OR SPIDER LOUSE. 
a, Adult; b, tarsus; c, mouth parts; d and e, young—all enlarged. 
louse, or the head for the large head louse, and in fact 
have looked them from top to bottom for parasites and 
have found none. I wonder if they have ever looked on 
the throat, or at the side below the ears, for the large 
head louse. I wonder if it entered into the brain of 
such breeders that the head louse could destroy the life 
of chicks from two to six weeks old by sucking the life- 
blood from the throat and under the head. If it has 
not, I can tell them that such is the case, and I say 
without fear of contradiction that when the chick ap- 
