BORIC ACID AND BOBAX. 125 



In all subsequent examinations, however, the Fleischl apparatus 

 was used. These methods are also given in the publication above 

 mentioned.** 



The number of corpuscles was counted independently by two 

 observers, Messrs. C. P. Knight and B. J. Howard, and the mean of 

 the two counts was taken as the correct number of corpuscles in each 

 cubic millimeter. The hemoglobin was measured in the same way. 

 The independent data obtained by the two observers agreed well. The 

 first observations were made for the purpose of trying the methods 

 and obtaining the necessary skill on the part of the observers. 



Instruction in making these observations was given by Dr. William 

 B. French and Dr. John H. McCormick, who kindly supervised the 

 first tests and directed the detail of the observations. The number of 

 corpuscles per cubic millimeter and the reading for hemoglobin for 

 each of the members of Series I, III, and V are given in Table XXI, 

 shown on page 128. The first examinations were made a few days 

 after completing the after period of the first series. The second 

 observation was made upon the same subjects on the 28th of February, 

 at the beginning of the preservative period of Series III. 



The data for Series III show a fair agreement between the two 

 observers, the only notable difference in regard to the number of 

 corpuscles being in the case of No. 6, the counts differing by over 

 1,000,000. In the measurement of the hemoglobin the two sets of 

 data agree satisfactorily. It will be noticed in this case that No. 4 of 

 the first observation differs remarkably from No. 4 in the second. 

 This is because of a change in the individual, No. 4 of the first series 

 having dropped out of the observation and his place being taken by 

 another. Both the red corpuscles and the hemoglobin are extremely 

 low in the case of the new subject. 



It is noticed that the amount of hemoglobin does not always coin- 

 cide with the number of corpuscles; for instance, No. 2, with over 

 6,500,000 corpuscles, shows a hemoglobin reading of only 71.6 per 

 cent of the amount normally present in human blood, while No. 3, 

 with 5,500,000 corpuscles, shows 107.6 per cent. 



The next series of observations is the only complete one which was 

 secured, covering all three periods of Series V. The first observation 

 was made about the middle of the fore period, namely, April 28. The 

 second observation was made near the beginning of the last half of the 

 preservative period, namely % on the 29th of May. The last observation 

 was made at the end of the after period, namely, on June 30. (See 

 Table XXL) 



A comparison of these data by individuals shows, in the case of No. 1, 

 a progressive increase in the number of corpuscles, which rises from 



Clinical Examination of the Blood, by E. C. Cabot, fourth, revised edition, pp. 

 33, 34, 37-39. 



