EXTRACTS FROM FOREIGN JOURNALS. 
205 
lous matter; 2d, by heredity or nursing; 3d, by inoculation of 
the tuberculous matter or of the blood; 4th, by simple cohabi¬ 
tation. 
In a future note I will show that the infection, in the case of 
injestion or of contagion, takes place through the mouth.— 
* Academie des Sciences. 
ON THE ANATOMICAL CHARACTER OF BLOOD IN PHLEGMASIES. 
By M. G. Hayem. 
The study of the anatomical alterations of the blood, and es- 
pecially of the evolution of those alterations, shows that the 
principal morbid stages have, so to speak, a special hematic char¬ 
acter, the knowledge of which may be used in the diagnosis and 
prognosis of a certain number of diseases. 
My attention being particularly called to the connections ex 
isting between the modifications of the hematoblasts and the for 
mation of the fibrinous reticulum, I observed that the microsco 
pical examination of the process of coagulation furnishes numer¬ 
ous instructive facts quite as positive as the dosage of the fibrine 
by chemical means. 
To speak first of the phlegmasies, we shall be called upon to 
distinguish, 1st, the modifications in number of the elements of 
the blood, and, 2d, of the qualitative alterations which occur in it 
The present note will treat only of the variations in number. 
I. White Corpuscles .—In the normal state the number of the 
white globules is in proportion specially to the age of the subjects. 
In the woman the number is the same as in man, but it gen 
erally increases from 1,000 to 2,U00 during menstruation. 
It is to be understood that in all phlegmasies the number of 
white corpuscles is increased. This varies ; out of 65 observations 
it oscillated between 7,000 and 36,500. The first figure was 
observed in a mild case of erysipelas of the face, almost apery- 
tical; the second in a case of double caseous pneumonia, with 
vomica. Most commonly, the number of white corpuscles is from 
