Halometric Readings in Indians

نویسندگان

  • Colin McIver
  • Nisanath Ghosh
چکیده

mainly on the students of the Berry-White Medical School and on some patients of the indoor hospital attached to the same school; it is, therefore, possible that they may not apply equally well to all classes of Indians in all parts of India. But, as we believe our paper to be the first one of its kind dealing with at least a section of the Indian people, we have adopted the above title for this article. A very brief hint about the instrument (the halometer) may not be out of place here. The halometer is an instrument for measuring the diameter of a red blood corpuscle from the size of the rainbow coloured circle or halo produced by light passing from a constant source through a thin fresh film of blood consisting as far as possible of a single layer of cells. It consists of a small dark viewing box from which light (either natural or artificial) comes out through a window or hole on one side. The slide examined is seen in this light against the window. There is a scale and an indicator on one side of the box adjacent to that with the window. Readers wanting further details are referred to the British Medical Journal of July 13th, 1929. The scale of the halometer measures the diameter of the halo. The calibration gives the angular measure of the hato m numerical figures on the scale representing degrees. These readings can be converted into the average size of a red blood cell of the sample of blood examined by reference to a printed table which is sent out with each instrument by the makers. A copy of such a table is shown below (vide Table I) as reference to it will be necessary in our discussion.

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عنوان ژورنال:

دوره 66  شماره 

صفحات  -

تاریخ انتشار 2016