PAPERS OX MEDICINE AND PUBLIC HEALTH 



Total W. B. C. Count 



475 



Plate I. 



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counting of 200 white cells, tlie actual number of nucle- 

 ated red cells appearing in tlie field was recorded. These 

 are grouped as normoblasts, megaloblasts, and micro- 

 cytes, respectively. The chart shows in the first three 

 columns the hemoglobin tests, the number of white blood 

 corpuscles in 1 cubic millimeter of blood, and the number 

 of red blood cells per cubic millimeter. 



The data of the second chart is computed from that of 

 the first. Here the actual number per cubic millimeter of 



