Gr. H. F. Nuttall and S. Had wen 
235 
2. Trypanblau given by the mouth is ineffective, since it exerts no 
apparent influence either upon the parasite or upon the course of the 
disease. 
3. Tryparosan, when injected subcutaneously or when given by 
the mouth, has no effect upon the parasite and is ineffective as a remedy 
against piroplasmosis in the dog. 
It remains to be determined how long Trypanblau (and Trypan rot ?) 
are capable of protecting animals exposed to infection. 
REFERENCES. 
Marks, L. H. (v. 1909). Ueber intrastomachale Behandlung trypanosomeninficirter 
Mause. Zeitschr. f. Ivimunitdtsforschung u. experim. Therapie, n. 350—355. 
Nuttall, G. H. F., and Hauwen, S. (vi. 1909). The successful drug treatment of 
canine piroplasmosis, together with observations upon the effect of drugs on 
Piroplasma cams. Parasitology , II. 156—191. 
Roehl, W. (xii. 1908). Ueber Tryparosan. Zeitschr. f. Immunitatsforschung u. 
experim. Therapie , I. 70—76. 
