XI.—The Histology of the Blood of the Larva of Lepidosiren paradoxa. Part I. Structure of the Resting and Dividing Corpuscles

Thomas H. Bryce

doi:10.1017/S0080456800034414

XI.—The Histology of the Blood of the Larva of Lepidosiren paradoxa. Part I. Structure of the Resting and Dividing Corpuscles

Published online by Cambridge University Press: 06 July 2012

Thomas H. Bryce

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The material for the observations recorded in this paper has been kindly lent to me by Mr Graham Kerr, Professor of Zoology in the University of Glasgow. It consisted of some of his beautiful series of cut embryos, and of some freshly-sectioned material which I stained specially for the purposes of the research.

The blood corpuscles of the embryo Lepidosiren are exceptionally favourable objects for the study not only of the morphology of the blood, but also of cell structure. The karyokinesis in the red corpuscles presents features of considerable interest—and the phenomena are presented to the observer on such a scale as to render them almost diagrammatic.

In the present paper I shall deal with the structure of the corpuscles and the mitotic phases in the erythrocytes, reserving for a future communication the results of studies on the origin and histogenesis of the elements.

Type: Research Article
Information: Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 41 , Issue 2 , 1906 , pp. 291 - 310

DOI: https://doi.org/10.1017/S0080456800034414 [Opens in a new window]
Copyright: Copyright © Royal Society of Edinburgh 1906

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^{page 291 note *} Phil. Trans., vol. cxcii. B. 182, 1899.

^{page 293 note *} Archiv f. mikr. Anat., Bd. 4G, 1895.

^{page 293 note †} Bibliographie anatomique, 1896.

^{page 293 note ‡} Anat. Anzeiger, Bd. 23, 1903.

^{page 293 note §} Giglio-Tos, Mem. Accad. delle Sr. Torino, T. xlvi., 1896.

^{page 293 note ∥} Anat. Anzeiger, July 1903, Bd. 23.

^{page 293 note ¶} Protoplasm, etc., English trans., 1894, p. 125.

^{page 293 note **} Pfluger's Archiv f. Physiologie, Bd. 82, 1900.

^{page 293 note ††} Arch. f. miler. Anat., Bd. 61, 1902, p. 459.

^{page 293 note ‡‡} Meves, in a paper published since this paper was written (Anat. Anzeiger, vol. xxiv. No. 18), holds that there is no membrane in the amphibian corpuscles. The peripheral ring of fibrillæ is the only structural arrangement in Salamandra, but he states that in Rana there is, in addition, a ‘Fadenwerk,’ which is collected further round the nucleus, especially at its poles, and he quotes Hensen (Zeitschr.f. wiss. Zool., Bd. 11, 1862) as having described in the corpuscles of the Frog a granular material round the nucleus, from which threads pass to the periphery.

^{page 294 note *} Meves, in a recent paper cited in the note to page 293, concludes that the band is the cause of the biconvex shape of the corpuscle. His explanation of the mechanism does not seem to apply very satisfactorily to the Lepidosiren corpuscles, but I must postpone a discussion of the question until all the stages in their histogenesis have been worked out. It seems to me that it is only by a study of the developmental stages that the significance of the band or ring can be determined.

^{page 295 note *} Cf. Pappenheim, Virchow's Archiv, vol. 145.

^{page 296 note *} Zellen-Studien, Heft iv., “Über die Natur der Centrosomen,” 1900.

^{page 297 note *} Meves, Verhand. anat. Gesellschaft, 1902.

^{page 300 note *} Arch.f. Entwickelungsmek., Bd. xii., 1901.Google Scholar

^{page 300 note †} Ibid., Bd. iii., iv., xvii.

^{page 300 note ‡} Ver. anat. Gesell., Berlin, 1896. Arch. f. Entwikelungsmek, Bd. i.

^{page 301 note *} Zellen-Studien, Heft 2, 1888.

^{page 301 note †} Arch. f. Entwickelungsmek., Bd. v.

^{page 303 note *} Arch. f. Entwickelungsmek., Bd. xiii.

^{page 303 note †} Ibid., Bd. xvi.

^{page 307 note *} Archiv f. mikr. Anat., Bd. xliii.

^{page 307 note †} Cf. Gulland, Jour. of Phys., vol. xix.

^{page 309 note *} Loc., cit.

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XI.—The Histology of the Blood of the Larva of Lepidosiren paradoxa. Part I. Structure of the Resting and Dividing Corpuscles

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