Wasmann, who has compiled a list of nearly 1 50o species of insects, arachnids and crustaceans, inhabiting ants' nests.
Wasmann considers that ants are neither miniature human beings nor mere reflex automata, and most students of their habits will probably accept this intermediate position as the most satisfactory.
Wasmann (Kritisches Verzeichniss der myrmecophilen and termitophilen Arthropoden, Berlin, 1894, and 3,rze Congres Intern.
(1898); Wasmann, Die psychischen Fahigkeiten der Ameisen (Stuttgart, 1899); C. Ll.
Wasmann, for example, divides instinctive actions under two groups: (I) those which immediately spring from the inherited dispositions; (2) those which indeed proceed from the same inherited dispositions but through the medium of sense experience.
By using the term instinctive in both its strict and its wider significance, Wasmann includes under it the whole range of animal behaviour.
Wasmann's comprehensive definition so far accords with popular usage.
Wasmann, Zur Entwickelung der Instincte (1897), Instinct and Intelligenz im Tierreich (1899, Eng.
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