Lectures on the Comparative Anatomy and Physiology of the Invertebrate Animals: Delivered at the Royal College of Surgeons, in 1843 |
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Page 8
... horny matter . The physiologists who viewed this modification of a stomach , without reference to the rest of the or- ganisation of the bird , and who contented themselves by experimenting upon the compressive and triturating force of ...
... horny matter . The physiologists who viewed this modification of a stomach , without reference to the rest of the or- ganisation of the bird , and who contented themselves by experimenting upon the compressive and triturating force of ...
Page 70
... horny points . The secerning tubes terminate at the mouth by their smaller extremities , and there pour out a semi - pellucid secretion . They are analogous to the similarly simple salivary cæca in the Holothuria ; and their coexistence ...
... horny points . The secerning tubes terminate at the mouth by their smaller extremities , and there pour out a semi - pellucid secretion . They are analogous to the similarly simple salivary cæca in the Holothuria ; and their coexistence ...
Page 85
... horny integument ( Sertu- larians ) . Now these likewise develope new polypes by gemmation ; but , as the external crust grows with the growth of the soft digestive sac , the young polype adheres to the body of the parent , and , by ...
... horny integument ( Sertu- larians ) . Now these likewise develope new polypes by gemmation ; but , as the external crust grows with the growth of the soft digestive sac , the young polype adheres to the body of the parent , and , by ...
Page 86
... horny defence prevents , as I have just ob- served , the exercise of the gemmiparous faculty from effecting any other change than that of adding to the general size , and to the number of prehensile mouths and digestive sacs , of the ...
... horny defence prevents , as I have just ob- served , the exercise of the gemmiparous faculty from effecting any other change than that of adding to the general size , and to the number of prehensile mouths and digestive sacs , of the ...
Page 96
... horny texture ; but in the Eschare it is hardened by the deposition of particles of carbonate of lime in the organised animal basis ; so that the external skeletons of the Bryozoa offer analogous conditions to the cartilaginous and bony ...
... horny texture ; but in the Eschare it is hardened by the deposition of particles of carbonate of lime in the organised animal basis ; so that the external skeletons of the Bryozoa offer analogous conditions to the cartilaginous and bony ...
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Common terms and phrases
abdomen alimentary canal analogous Anatomy Anellides animal animalcules antennæ aperture appendages Ascidians attached Belemnite bivalves blood body branchiæ branchial Bryozoa calcareous cavity cells cephalic Cephalopods chords ciliated cloth colour compound eyes consists Crustacea Cuvier developed digestive dilated Diseases distinct dorsal duct Edition elongated embryo Entozoa external extremity eyes female filaments fluid ganglion Gasteropods genus germinal vesicle gills glands head horny Infusoria insects integument interspace intestine jointed larva larvæ layer LECTURE legs locomotive London longitudinal male mandibles mantle margin mass maxillæ membrane metamorphosis minute Mollusca mouth muscles muscular fibres muscular system Nautilus nerves nervous system observed ocelli oesophagus organisation organs orifice ovaria oviduct ovum pair parasitic plates polypes posterior present processes radiated respiratory rudimental segments shell side siphon slender species spiders spines stomach structure surface tentacles tentacula terminal thorax tissue transverse tube tunic vascular ventral vesicle vessel visceral wings worm
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