BRISTLE-TAILS AND SPRING-TAILS. 107 
leap by pushing a needle under the vial. They may also be col- 
lected by a bottle with a sponge saturated with ether or chloro- 
form. They may be kept alive in vials for weeks by keeping - 
moist slips of blotting paper in the vial. In this way I have kept 
specimens of Degeeria, Tomocerus and Orchesella, from the middle 
of December till late in January. During this time they occa- 
Anura, 
sionally moulted, and T. plumbea, after shedding its skin eat it up 
within a few hours. Poduras feed ordinarily on vegetable matter, 
such as dead leaves and growing eryptogamic vegetation. 
These little creatures can be easily preserved in a mixture of 
whiskey and glycerine, or pure whiskey, though without the glye- 
erine the colors fade. The writer would be thankful for specimens 
both of Poduras and Lepismas, for study. 
