No. XII. 200 corpuscles from two sides of purpura hæmorrhagica. Zeiss 1-18, etc.
Slides Nos. 21 and 23.
Slide No. 21.

No. XIII. 400 corpuscles from two cases of pseudo-leucocythaemia.
Slides Nos. 12 1-2-3 and 19.

Zeiss 1-18, etc.

5.87 m.; mean

Slide No 19.

2d 100, largest 10.52 m.; smallest
3d 100, largest-12-60 m.: smallest
Largest 11.04 m.; smallest 6.56 m.; mean-8.04 m.

6.22 m.; mean

8.50 m.
8.42 m.

5.52 m.; mean

8.55 m.

하

No. XIV. 100 corpuscles from F. S., Cook County Hospital. Pulmonary and intestinal tuberculosis; emaciation and anæmia marked. Zeiss 1-18. Jackson micrometer, 1 div.=0.1725 m. Slide No. 3. Largest=10.70 m.; smallest 5.35 m.; mean 8.35 m.

10

5

क

35

No. XV.

40

45

50

55

65

100 corpuscles from P. R. Cook County Hospital. Diagnosis uncertain, probably
pernicious anæmia; emaciation marked. Zeiss 1-18, etc., as above.
Slide No. 5. Largest 9.93 m.; smallest =6.04 m.; mean=7.69 m.

No. XVI. 100 corpuscles from A. K., Cook County Hospital. Plumbism; emaciation not marked; anæmic. Zeiss 1-18, etc., as before.

No. XVII. Blood of P. K., Cook County Hospital, 100 corpuscles. Diagnosis uncertain, probably gastritis: marked emaciation. Zeiss 1-18, etc.; Jackson micrometer, etc., as before. Slide No 4. Largest 10.18 m.; smallest 6.22.; mean 8.32 m.

45 No. XVIII. 100 corpuscles from each of two cases of syphillis. Zeiss 1-18, etc. Slides Nos. 24 and 25.

Slide No. 24.

Slide No. 25.

Largest corpuscle=9.15 m.; smallest corpuscle=3.97 m.; mean size
Largest corpuscle 9.32 m.; smallest corpuscle

8.11 m.

6.90 m.; mean size=8.11 m.

No. XIX. 100 corpuscles from a case of erysipelas. Zeiss 1-18, etc.

Slide No. 22. Largest corpuscle=9.15 m.; smallest corpuscle 6.90 m.; mean size 7.83 m.