The toxins and venoms, and their antibodies / by Em. Pozzi-Escot; authorized translation by Alfred I. Cohn, PHAR.D.

  • Pozzi-Escot, M. Emm. (Marius Emmanuel), 1880-
Date:
1906
Catalogue details

Licence: Public Domain Mark

Credit: The toxins and venoms, and their antibodies / by Em. Pozzi-Escot; authorized translation by Alfred I. Cohn, PHAR.D. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    insoluble in strong alcohol, and are precipil from their solutions on the addition of this reagent. They easily adhere to precipitates that form in liquids in which they occur in solution, and possess the remarkable property of diastases in that impon- derable masses produce considerable results.* Although closely allied to certain alkaloidal bases, the toxins are sharply distinguished by the remark- able fact that their action is never immediate, but is always preceded by a period of incubation, which may be quite long. Like the alkaloidal bases, they appear to result from the hydrolyzing breaking down of albu- minoids and nucleo-albumins, and they appear to be intermediary, from a chemical point of view, between these bodies, the general characters of which they retain, and the alkaloids proper, or ptomaines, to which we have called attention, and the principal chemical and physiological properties of which they possess. No absolutely precise knowledge is had regard- ing the chemical nature and constitution of these remarkable substances. A number of analyses of these substances have been published which, in general, permit no definite conclusion to be drawn.f * See Tozzi-Escot: Lcs diastases et leurs applications, pub- lished by Masson. 1900; and Traiie de Physico-ckimie. f Regarding this see the works by Koch and Brieger, Deutsche Medicin. Wochenschr., Oct. 22, 1S91.
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