Delicately patterned yellow eggs [x 35^] of a mourning cloak butterfly. The little caterpillars come out at 

 the tops of the eggs after about two weeks. No bird's egg ever laid can surpass in delicacy of coloring hundreds 

 of different kinds of insect eggs, and they are of multitudinous shapes and intricate carvings. Every garden 

 is full of them at this moment, although it is winter 



The caterpillar of a tomato sphinx moth — a famous case of parasitism, where the caterpillar not only is 

 destroyed by the parasites but also must carry the cocoons of its destroyers about on fts back. If it escapes 

 attack until it is full grown, it becomes possessed by a strange instinct which makes it desert the high leaves 

 where it has been feeding in the sunshine, descend to the ground, and plow headfirst down into the darkness — 

 to sleep until ready to transform into the winged moth. There are plants incapable of making seeds unless these 

 sphinx moths bring them pollen. There are injurious insects which man keeps in check by means of their parasites 



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 THE DE VINNE PRESS. NEW YORK 



