Lectures on clinical medicine / [John Hughes Bennett].

  • Bennett, John Hughes, 1812-1875.
Date:
1850-1856]
Catalogue details

Licence: Public Domain Mark

Credit: Lectures on clinical medicine / [John Hughes Bennett]. Source: Wellcome Collection.

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    be considered as unhealthy. In some cases I have seen them abundant so late as six weeks after the birth of the infant. Fig. 56. Fig. 56._Colostrum of the human female, containing milk globules greatly varying in size, with compound granular corpuscles. On some occasions, milk may be mixed with pus and blood, which are readily detected by the characters distinctive of each. Dr Peddle has pointed out that milk can be squeezed from the mamma during the early months of pieg- nanev. Under such circumstances, it constitutes a most important sign of the pregnant state, especially of a first pregnancy ; for although the secretion at this time has seldom the external appearance of milk, but is serous-looking, and often very viscid and syrupy, when examined with the microscope the characteristic milk globules will at once appear. See Ins valuable papei, “ Monthly Journal,” August, 1848. The Blood. On examining a drop of blood drawn from the extremity of the finger by pricking it, there will be seen a multitude of yellow, round, bi-concave discs, rolling in the field of the microscope, which soon exhibit a tendency to turn upon their edge, and arrange themselves in rolls, like rouleaux of coins. ese rouleaux, by crossing one another, dispose themselves in a kind of net-woi , between which may be seen a few colourless spherical corpuscles, having a molecular surface, and a few granules. The coloured blood-corpuscles vary in size from the ^th to the ^th of an inch in diameter, then aveiage size being about the ^th of an inch. Owing to their bi-concave form, they present a bright external rim with a central shadowed spot, or a bright centie Fig. 57. Fig. 57.-Blood-corpuscles, drawn from a°lfght centre^accordhfg^o on the right of the figure several rolls have formed. Two colourless corpuscles and a lew granules are also visible.