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abdomen absent alimentary canal Amphibia animals aperture aquatic auricle birds bladder blood body bones bony bony pike branchiae calcareous called canines Carnivora caudal cavity cells Cetacea chambers characters clavicle claws cloaca cloth composed comprise containing coracoid covered Crustacea Describe developed digestive Digitigrade distinct divided division dorsal Dublin external extremely Fannin feathers fins fishes Foolscap 8vo four ganglia ganglion gills gland heart consists homologous horny Hospital humerus incisors insects integument intestine larva legs lower jaw lungs Mammalia Mammals membrane mollusca mouth muscles muscular nervous system organs pair peculiar pelvic arch pharynx plates possess present Professor Owen Protozoa Quadrumana rays reptiles respiration ribs rudimentary Ruminants sacs scapula shell single situated skin skull soft spine sternum stomach structure sub-divisions sub-kingdom Surgeon tail teeth termed terminates tion toes transverse processes tubes upper jaw usually valve ventricle vertebrae vertebral column Vertebrata vitreous humour
17 페이지 - I believe that animals have descended from at most only four or five progenitors, and plants from an equal or lesser number. Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their germinal vesicles, their cellular structure, and their laws of growth and reproduction. We see this even in so trifling...
18 페이지 - Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some one primordial form into which life was first breathed by the Creator.
161 페이지 - Anatomy of the Arteries of the Human Body, Descriptive and Surgical, with the Descriptive Anatomy of the Heart.
157 페이지 - The author has placed the student under considerable obligations by his system of botanical analysis.
129 페이지 - The sponge represents a kind of subaqueous city, where the people are arranged about the streets and roads in such a manner that each can easily appropriate his food from the water as it passes along.
17 페이지 - Analogy would lead me one step farther, namely, to the belief that all animals and plants are descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their cellular structure, their laws of growth, and their liability to injurious influences.
162 페이지 - The Practice of Medical Electricity; Showing the most Approved Apparatus, their methods of Use, and rules for the treatment of Nervous Diseases, more especially Paralysis and Neuralgia.
157 페이지 - Post 8vo. cloth, 2*. DR. DJT FRANCIS. CHANGE OF CLIMATE ; considered as a Remedy in Dyspeptic, Pulmonary, and other Chronic Affections; with an Account of the most Eligible Places of Residence for Invalids, at different Seasons of the Year. Post 8vo. cloth, 8s.
63 페이지 - In the hind limb of most birds there is a singular extensor muscle, which arises from the pubis, ends in a tendon which passes to the outer side of the knee-joint, and terminates in the leg by uniting with the flexor digitorum perforatus. The result of this arrangement is, that the toes are flexed whenever the leg is bent upon the thigh, and, consequently, the roosting bird is held fast upon his perch by the weight of his own body.