Abstract
It is generally thought that cockroaches which move about for several days with egg-cases protruding from their bodies eventually drop them casually in any moist place. The following observations on the two species of domestic roach, Periplaneta americana and Blatta orientalis , show conclusively that they do not drop the egg-cases indiscriminately, but usually hide them with great care in crevices, or bury them in soft wood or workable material. Moreover, they almost always cover them precisely with bits of debris, which sometimes they even carry from a distance.[1][1] Only recently I have been so fortunate as to be able to observe, step by step, these marvelous activities, which are so unlike the stupid, primitive creatures that roaches are generally thought to be. [1]: #fn-1
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