The Shipley Collection of Scientific Papers, Volume 331890 - Zoology |
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Page 10
... close relation to the development of the cell itself , and he consequently called the nucleus a " cytoblast . " Schleiden further discovered that the cytoblasts contained one or more minute circumscribed " spots , " or " rings , " or ...
... close relation to the development of the cell itself , and he consequently called the nucleus a " cytoblast . " Schleiden further discovered that the cytoblasts contained one or more minute circumscribed " spots , " or " rings , " or ...
Page 23
... close to the cellulose wall , and enclosing the sap cavity of the cell . Professor Huxley , in an article on the Cell Theory , 2 criticised the views of Schleiden and Schwann , and introduced the terms endoplast and periplast into ...
... close to the cellulose wall , and enclosing the sap cavity of the cell . Professor Huxley , in an article on the Cell Theory , 2 criticised the views of Schleiden and Schwann , and introduced the terms endoplast and periplast into ...
Page 30
... close together at the pole , and the limbs of the loops are bent towards the equator of the spindle . Two stars are thus produced ( dyaster ) , one at each pole , and each star is formed of one of the daughter threads into which each ...
... close together at the pole , and the limbs of the loops are bent towards the equator of the spindle . Two stars are thus produced ( dyaster ) , one at each pole , and each star is formed of one of the daughter threads into which each ...
Page 41
... close relation to the Wolffian duct and the pleuro- peritoneal cavity . At the end of the fourth day or in the fifth 1 Proc . Roy . Soc . London , 1872 ; and Jour . Anthrop . Inst . , vol . v . , 1876 . 2 This address was reported at ...
... close relation to the Wolffian duct and the pleuro- peritoneal cavity . At the end of the fourth day or in the fifth 1 Proc . Roy . Soc . London , 1872 ; and Jour . Anthrop . Inst . , vol . v . , 1876 . 2 This address was reported at ...
Page 44
... close proximity to the water , bring their blood first into contact with air contained in a system of closed tubes , and then this air into contact with the water . In the case of ordinary larvæ , the probability of modifica tions due ...
... close proximity to the water , bring their blood first into contact with air contained in a system of closed tubes , and then this air into contact with the water . In the case of ordinary larvæ , the probability of modifica tions due ...
Common terms and phrases
acquired characters Actinozoa adult alimentary Amphioxus Anatomy ancestral Annelid ants appear archenteron assume become blastopore body Burchell's zebra carapace-length cavity changes chromatin cœlom colour connection corpuscles degeneration dentary derived deviation differentiation diploblastic disuse division ectoderm eggs embryo essay evolution excretory existence explanation fact females fibres formation frontal breadth germ germ-plasm growth homologous horse hybrid hypothesis important insects instance instincts larva larvæ legs less males mare mean mesoblast Metazoa modified morphological mouth and anus natural selection nephridia nervous system neural canal nucleus number of glands nutrition observations occur ontogeny organs origin ovum Panmixia Peripatus plants plasm pores pouches present primitive streak principle produced Professor Weismann protoplasm recognised regard reproductive cells result Schwann Sedgwick segmentation nucleus segmented animals somites specialised species Spencer stage structure substance supposed telegony theory tion tissues unicellular variability variations Vertebrata Vertebrate workers yolk zebra
Popular passages
Page 65 - The elementary parts of all tissues are formed of cells in an analogous, though very diversified manner, so that it may be asserted, that there is one universal principle of development for the elementary parts of organisms, however different, and that this principle is the formation of cells.
Page 7 - XVIII. OF THE SCHEMATISME OR TEXTURE OF CORK, AND OF THE CELLS AND PORES OF SOME OTHER SUCH FROTHY BODIES...
Page 72 - PROCESSES, AND COLLATERAL INFORMATION IN THE ARTS, MANUFACTURES, PROFESSIONS, AND TRADES, INCLUDING MEDICINE, PHARMACY, AND DOMESTIC ECONOMY ; designed as a General Book of Reference for the Manufacturer, Tradesman, Amateur, and Heads of Families.