British Social Wasps: An Introduction to Their Anatomy and Physiology, Architecture, and General Natural History ; with Illustrations of the Different Species and Their NestsLongmans, Green, Reader, and Dyer, 1868 - Всего страниц: 270 |
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Стр. 19
... mechanical functions of the part . It is not outside , but inside the bones of insects that these indications are to be found , the same horny plates serving the purpose both of skin and bone . So again , while in Vertebrata the blood ...
... mechanical functions of the part . It is not outside , but inside the bones of insects that these indications are to be found , the same horny plates serving the purpose both of skin and bone . So again , while in Vertebrata the blood ...
Стр. 61
... mechanical , and the permanent nature of the segmental sub - divisions , have more weight in the eyes of physiologists ; and general opinion inclines to regard it as insect bone . The body of the larva is covered with a thin , soft ...
... mechanical , and the permanent nature of the segmental sub - divisions , have more weight in the eyes of physiologists ; and general opinion inclines to regard it as insect bone . The body of the larva is covered with a thin , soft ...
Стр. 62
... mechanical properties , but totally unlike it in structure and chemical composition . Chemically examined , chitin * is found to be insoluble in a solution of caustic potash ; it does not swell up and melt before the flame of the blow ...
... mechanical properties , but totally unlike it in structure and chemical composition . Chemically examined , chitin * is found to be insoluble in a solution of caustic potash ; it does not swell up and melt before the flame of the blow ...
Стр. 64
... mechanical laws . A larger surface is thus obtained for the attachment of the muscles and for the articulations . And , by the skeleton answering the double purpose of skin and bone , all the weight of the former is saved . The three ...
... mechanical laws . A larger surface is thus obtained for the attachment of the muscles and for the articulations . And , by the skeleton answering the double purpose of skin and bone , all the weight of the former is saved . The three ...
Стр. 68
... microscopic body is per- meable by chemical diffusion , needs no mechanical * See Cyclopædia of Anatomy and Physiology , ' Vol . II , p . 960 . aids to respiration . And so its respiratory organs are 68 NATURAL HISTORY OF WASPS .
... microscopic body is per- meable by chemical diffusion , needs no mechanical * See Cyclopædia of Anatomy and Physiology , ' Vol . II , p . 960 . aids to respiration . And so its respiratory organs are 68 NATURAL HISTORY OF WASPS .
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abdomen abdominal ring antennæ appear arrangement attached bees black band body britannica British build cells central clypeus cocoon colour comb compound eyes connected Crown 8vo cusp Cyclopædia dark displayed distinct dorsal dorsal scale edge eggs Entomology examination female fibres fore-wings germanica glands ground-wasps higher animals honey-bee hooks hornet horny Hymenoptera Illustrations integument joints labium labour larger larva larvæ layer legs less limbs male mandibles markings materials maxillæ membrane meta-thorax metathorax microscope mouth muscles of flight Natural History nest notch observation oesophagus organs outer ovaries pair paper perfect insect Plate portion prothorax pupa queen round rufa salivary glands scale scarcely scutellum seen segments side skin smaller Solitary group species specimen spiracles spots sting structure surface swarm sylvestris thorax tion trace trachea tree-wasps tubes ventral scales Vespa Vespidæ vulgaris wasp's wasps wings workers yellow
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