1932] A Method for Collecting Ectoparasites 27 
vented it from biting. The forefeet were tightly fastened 
together with a piece of one-inch bandage and after the 
hind feet had been secured in like manner a short strip of 
the bandage was used to connect the fore and hind feet. 
This strip was about eight inches in length and prevented 
the forefeet from being separated from the hind feet for 
a distance of more than its length. This permitted some 
movements of the legs but prevented the animal from using 
them too freely. The pig was then placed in a sitting posi- 
tion in a large glass anatomical jar with its head above the 
top of the jar and a towel placed about its neck somewhat 
after the manner in which a barber’s apron is used. This 
left one side of the towel wrapped tightly about the neck 
of the pig while the other part was spread out to com- 
pletely cover the top of the jar. An elastic band stretched 
around the top of the jar and the outer edge of the towel 
served to hold the latter closely in place. As the animal 
rested on its hind feet the bandage connecting them with 
the forefeet held the latter down in the jar and prevented 
them from being hooked over the top of the jar or to claw 
at the towel. One hand grasping the towel at the nape of 
the neck of the pig sufficed to hold the animal upright with 
its head above the top of the jar as well as to keep the 
towel tightly in place about its neck. Chloroform was 
then liberally sprinkled about on the towel in rather close 
proximity to the pig’s neck but not near enough to permit 
the liquid to reach the animal’s body. The vapor of the 
chloroform being heavier than air readily penetrated 
through the towel to the bottom of the jar. The effect of 
the chloroform vapor on the fleas quickly became evident 
and in less than a minute many of them were seen leaving 
the pig and falling to the bottom of the jar. A few that 
came up on the head of the animal were stupefied and were 
collected by dabbing them with a small pledget of cotton 
wet with chloroform. In about four minutes the pig was 
taken from the jar and after removing the towel from 
about its neck the animal was given a brief combing to 
remove the few dead or stupefied fleas that were adherent 
to the hair or skin. A careful examination of the animal 
