Hoagland Laboratory.
Department of Bacteriology
Brooklyn, N.Y. June 24th, 1895.
Dear Doctor Reed:
I should have sent the toxine you requested before, but the convention has kept me busy. I send you by this mail 10 c.c. of a toxine, the minimum fatal dose of which I established a short time ago. 1/50 c.c. killed a g.p. [guinea pig] 430 gm in 3 ½ days. I have used the same toxine to standardize my serum.
Sincerely yours,
E. H. Wilson
P.S. It contains ½% trikresol.
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