MALARIA. 161 
(e) Wash, dry, and mount.  Ehrlich-Biondi 
preparations are examined dry. 
In these preparations the red corpuscles are 
stained red, the malarial organisms and the nuclei 
of the leukocytes blue. 
(2) Whitney’s Method. 
(2) Spread the blood as usual ; dry thoroughly in 
the air or by gentle heat. 
(2) Treat for twenty seconds with the following 
modification of Zenker’s fluid : 
Potassium bichromate, 2gm.; 
Sodium sulphate, I gm.; 
Water, 100 C¢.c. 
Saturate while warm with corrosive sublimate. 
Add 5 per cent. of strong nitric acid at time 
of using. 
(c) Wash in water, and dry with filter-paper. 
(2) Cover with Ehrlich’s triacid stain! for three 
minutes. 
(e) Wash, dry, and mount. 
Unna’s polychrome methylene-blue* and the 
Chenzinsky-Plein eosin and methylene-blue*® solu- 
tion work well after this fixation, but not Loffler’s 
methylene-blue. 
1See Appendix, page 172. 
2 See Appendix, page 172. 
5 See Appendix, page 173. 
