The Shipley Collection of Scientific Papers, Volume 331890 - Zoology |
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Results 1-5 of 49
Page 11
... formation of cells . " Both Schleiden and Schwann entertained the idea , which had long before been present in the mind of Grew , that a cell was a microscopic bladder or vesicle . In its typical shape they regarded it as globular or ...
... formation of cells . " Both Schleiden and Schwann entertained the idea , which had long before been present in the mind of Grew , that a cell was a microscopic bladder or vesicle . In its typical shape they regarded it as globular or ...
Page 12
... formation of a nucleus a nucleolus was first produced , that around it new molecules were deposited for a certain distance , and then a nucleus was formed . When the nucleus had reached a cer- tain stage of development , new molecules ...
... formation of a nucleus a nucleolus was first produced , that around it new molecules were deposited for a certain distance , and then a nucleus was formed . When the nucleus had reached a cer- tain stage of development , new molecules ...
Page 13
... formation in a cytoblastema had some affinity with that of crystallisation . He figuratively compares the cytoblastema to a mother - liquid in which crystals are formed . He speaks of molecules being deposited around a nucleolus to form ...
... formation in a cytoblastema had some affinity with that of crystallisation . He figuratively compares the cytoblastema to a mother - liquid in which crystals are formed . He speaks of molecules being deposited around a nucleolus to form ...
Page 14
... formation and cell - growth . Shortly after the publication of Schwann's famous memoir , Henle , who had for some years been engaged in microscopic investigations on the tissues , published his well - known treatise on General Anatomy ...
... formation and cell - growth . Shortly after the publication of Schwann's famous memoir , Henle , who had for some years been engaged in microscopic investigations on the tissues , published his well - known treatise on General Anatomy ...
Page 15
... formation within the rabbit's ovum of the body which he named , and which has been known since his time as the mulberry - like structure . This body arose at first as two vesicles , then as four , and so on in multiple progression , so ...
... formation within the rabbit's ovum of the body which he named , and which has been known since his time as the mulberry - like structure . This body arose at first as two vesicles , then as four , and so on in multiple progression , so ...
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.