Outlines of Zoology and Comparative AnatomyFannin, 1874 - Всего страниц: 150 |
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Стр. 17
... usually , light . With regard to the first origin of life on this globe , I shall here quote Mr. Darwin's hypothesis . " I believe that animals have descended from , at most , only four or five progenitors , and plants from an equal or ...
... usually , light . With regard to the first origin of life on this globe , I shall here quote Mr. Darwin's hypothesis . " I believe that animals have descended from , at most , only four or five progenitors , and plants from an equal or ...
Стр. 19
... usually nucleoli . The matrix or intercellular substance is called blastema ; cells multiply in various ways— ( 1 ) By fission , where a cell separates into two distinct cells ; ( 2 ) By gemmation , where a bud appears on the parent ...
... usually nucleoli . The matrix or intercellular substance is called blastema ; cells multiply in various ways— ( 1 ) By fission , where a cell separates into two distinct cells ; ( 2 ) By gemmation , where a bud appears on the parent ...
Стр. 28
... usually six or seven , rarely less than four ( in man only five ) ; the sacral vertebræ are generally amalgamated to form a single bone , the sacrum ( absent in whales ) ; while the caudal vertebræ vary in number from four to forty ...
... usually six or seven , rarely less than four ( in man only five ) ; the sacral vertebræ are generally amalgamated to form a single bone , the sacrum ( absent in whales ) ; while the caudal vertebræ vary in number from four to forty ...
Стр. 32
... front , and the optic lobes ( mesencephala ) —usually called corpora quadra- gemina ( for they are no longer bigeminal ) behind 32 Vertebrata . 99 Circulation Nervous System Senses Respiration Circulation Nervous System.
... front , and the optic lobes ( mesencephala ) —usually called corpora quadra- gemina ( for they are no longer bigeminal ) behind 32 Vertebrata . 99 Circulation Nervous System Senses Respiration Circulation Nervous System.
Стр. 36
... usually low in stature . 3. Ethiopian includes all the natives of Africa , and their descendants in the slave States . They have a thick progna- thous ( pó , in front , and yvá☺os ) skull , and low retreating forehead , broad nose ...
... usually low in stature . 3. Ethiopian includes all the natives of Africa , and their descendants in the slave States . They have a thick progna- thous ( pó , in front , and yvá☺os ) skull , and low retreating forehead , broad nose ...
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abdomen absent alimentary canal Amphibia anal animals anus aperture aquatic auricle birds bladder blood body bones bony bony pike branchiæ branchial calcareous called canines Carnivora caudal cavity cells cervical vertebræ Cetacea chamber clavicle claws cloaca composed comprise contains coracoid covered developed Digitigrade distinct divided dorsal vertebræ eîdos eldos elongated endoskeleton external extremely feathers feet female fins fishes five toes four front ganglia ganglion gills gland hind limbs horny humerus incisors insects integument intestine larvæ legs lower jaw lungs Mammalia Mammals mandibles maxillæ membrane mollusca mouth muscles muscular nervous system nostrils organs pair pectoral peculiar pelvic arch pharynx placed plates possess present Professor Owen Quadrumana rays respiration ribs rudimentary Ruminants sacs scapula shell single Sirenia situated skin skull soft spine sternum stomach sub-kingdom tail teeth termed terminates transverse processes tubes upper jaw usually valve ventral ventricle vertebral column Vertebrata wings
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Стр. 17 - 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...
Стр. 149 - Cooper's Dictionary of Practical Surgery and Encyclopaedia of Surgical Science. New Edition, brought down to the present time. By SA LANE, Surgeon to St.
Стр. 18 - 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.
Стр. 3 - Anatomy of the Arteries of the Human Body, Descriptive and Surgical, with the Descriptive Anatomy of the Heart.
Стр. 123 - 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.
Стр. 17 - 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.
Стр. 4 - 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.
Стр. 61 - 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.