The nest cavity consists of two parts : a well-developed involucrum, surrounding a nest consisting of several layers of horizontally arranged combs, and outside the involucrum, which house a number of food pots.
12.
The nest cavity consists of two parts : a well-developed involucrum, surrounding a nest consisting of several layers of horizontally arranged combs, and outside the involucrum, which house a number of food pots.
13.
And this creates a functional identity between the philosophic imagination and instinct, as those who have the first, " . . . feel in their own spirits the same instinct, which impels the chrysallis of the horned fly to leave room in its involucrum for antennae yet to come.
14.
The order of the activities workers perform can be divided into stages : ( 1 ) self grooming during the first few hours after emergence from the pupae, ( 2 ) incubation and brood chamber repairs, ( 3 ) construction and provisioning of cells, nest cleaning, and feeding young adults and the queen, ( 4 ) nest cleaning, reconstruction of the involucrum, nectar maintenance, and guarding the nest and ( 5 ) collection of pollen, nectar, and propolis.
15.
Among Waldenburg's many works : " De Origine et Structura Membranarum, Qu?in Tuberculis Capsulisque Verminosis Involucrum Pr�bent ", a prize essay at the University of Berlin, 1859; " Ueber Blutaustritt und Aneurysmenbildung, Durch Parasiten Bedingt ", in " Archiv f�r Anatomie und Physiologie ", 1860; " Ueber Structur und Ursprung der Wurmhaltigen Cysten ", in " Archiv f�r Pathologische Anatomie und Physiologie und f�r Klinische Medizin ", 1862; " Lehrbuch der Respiratorischen Therapie ", Berlin, 1864 ( 2d ed . 1872 ); " Die Tuberkulose, die Lungenschwindsucht und Scrofulose ", ib . 1869; and " Die Pneumatische Behandlung der Respirations-und Circulations-Krankheiten ", ib . 1875 ( 2d ed . 1880 ).
