JAMA. 1926;86(19):1467. doi:10.1001/jama.1926.02670450059024.
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Observations on the Habits of Ants  In the current number of the Deutsche medizinische Wochenschrift, Privatdozent Dr. Eidmann has an article on "psychic" or "mental" qualities of ants. In order to study the "language" of ants, Eidmann constructed a large upright ant-nest of plaster of paris, which was provided with glass walls, through which, as in a beehive, a captured large colony of Myrmica rubra (a common species in Germany) could be carefully observed and all the details of intercommunication noted.If one puts a bit of food — for instance, a dead insect — in the vicinity of the ant-nest, only a short time will usually elapse before one of the workers ranging about, a "scout," will discover the booty. The worker, having convinced herself through the application of the antenna of the genuineness of the find, drags it off in the direction of the nest, where it is


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