An Investigation into the Variation of the Haemoglobin Level in Women with Special Reference to Menstruation and Pregnancy

The original purpose of this investigation was to find out whether there was any variation in the haemogloblin level before the onset of the menstrual flow (Group A), and during pregnancy (Group B). In the first part of the investigation 45 unmarried women were examined, and in the second part 486 pregnant women were examined. In Group A, each woman was examined on a number of occassions. In Group B, single readings were taken in the case of 424 women, and two or more readings in the case of 62 women. The total number of observations made in Group A. was 953, and in Group B. was 604. During the course of the investigation various other points of interest emerged, and re dealt with in the text