The Shipley Collection of Scientific Papers, Volume 331890 - Zoology |
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Page 6
... important additions to our knowledge which the micro- scope has enabled us to gain is the difference between the appearance of a tissue or organ when passive , or in a state of rest , as compared with its appearance when actively at ...
... important additions to our knowledge which the micro- scope has enabled us to gain is the difference between the appearance of a tissue or organ when passive , or in a state of rest , as compared with its appearance when actively at ...
Page 8
... important part in the nutrition of the plant . Almost , indeed , he seemed to have grasped the idea that they exercised a selective or secreting influence ; for , in describing the parenchyma of the fruit of the lemon , he speaks ( p ...
... important part in the nutrition of the plant . Almost , indeed , he seemed to have grasped the idea that they exercised a selective or secreting influence ; for , in describing the parenchyma of the fruit of the lemon , he speaks ( p ...
Page 10
... important treatises on General Anatomy , made no reference to cells as elements of the tissues . Both these authors ... importance ( plate i . figs . 8 , 9 , 10 ) . considered to be formed earlier than the cytoblasts , and 10 PROFESSOR ...
... important treatises on General Anatomy , made no reference to cells as elements of the tissues . Both these authors ... importance ( plate i . figs . 8 , 9 , 10 ) . considered to be formed earlier than the cytoblasts , and 10 PROFESSOR ...
Page 11
... important generalisation that the tissues of the animal body are composed of cells , or of materials derived from ... importance which Schwann attached to the cell- THE CELL THEORY , PAST AND PRESENT . 11.
... important generalisation that the tissues of the animal body are composed of cells , or of materials derived from ... importance which Schwann attached to the cell- THE CELL THEORY , PAST AND PRESENT . 11.
Page 12
however , the importance which Schwann attached to the cell- wall , I should state that he regarded the chemical changes or metabolic phenomena as he termed them , as being chiefly pro- duced by the cell - membrane , though the nucleus ...
however , the importance which Schwann attached to the cell- wall , I should state that he regarded the chemical changes or metabolic phenomena as he termed them , as being chiefly pro- duced by the cell - membrane , though the nucleus ...
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.