20 



QUATERCENTENARY STUDIES IN PATHOLOGY 



taking their blood samples at 24-hour intervals. The assertion of 

 these latter observers that the leucocytosis produced is a mononuclear 

 one is evidently incorrect, and due to the same cause. 



2. — Tallianine. 



This substance, recently introduced by Stassano and Billon ("^3), is 



formed by the action of ozone on essence of turpentine, the action being 



stopped when there has been absorption of a quantity corresponding to 



four volumes of ozone. Tallianine, which is supplied by Brigonnet et 



VIII. 



IX. 



Gaubert (Paris),* in sealed tubes, is a clear watery fluid with a faint 

 terebene odour. 



Exp. VIII. (Chart VIII.) Rabbit. Intravenous inoculation of 2 cc. 



of Tallianine. 



In view of the fact that Stassano and Billon, in their brief note on 

 the subject, asserted that the leucocytosis occurs very quickly after 

 * Brigonnet p^re et fils et Gaubert, 15 rue du Landy. Plaine St. Denis (Seine). 



(340) 



