Six lectures on materia medica and its relations to the animal economy / by John Spurgin.

  • John Spurgin
Date:
1853
Catalogue details

Licence: Public Domain Mark

Credit: Six lectures on materia medica and its relations to the animal economy / by John Spurgin. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    confirms the observations of other authors, as Haller, Spallanzani, Mascagni, and more lately of Oesterreicher. For these all affirm that the apparently colourless vessels which contain the globules are strictly capillaries of a yellow rather than a red colour, and that these capil- laries, admitting only a single row of globules, are yellow in consequence of the small amount of colouring matter. The same testimony re- specting the yellow colom- of single globules occurs in authors of a much earlier date, and I was gratified to find that Dr. Wedemeyer had repeated and propagated the fact, because it induced me to withhold implicit credence from the statements of other writers on the supposed red colour of the envelope. Particulse plano-ovales quidem nullum refer- sunt colorem, says Leeuwenhoek, sed si plures invicem superponuntur, rubellam explicant tinc- turam. * And Boerhaave says, Globuli in partes resoluti, pellucidi, flavescentis seri induunt ingenium, cujus varii colores sunt.]* Now granting that very minute bodies which * Gvlielminus de Sanguinis Natura et Gonstihitione, n. 47. f Inst. Med., n. 225.