634 ANALYSIS OF CONTINENTAL JOURNALS. 
2nd. It is more intense when the object percussed is fixed 
at certain points. 
3rd. It depends on the duration of the contact of the 
object percussed; if this contact is prolonged there is no 
tympanic sound. 
The tympanic sound in cavities filled with air is produced : 
1st. When one diameter of the cavity percussed is greater 
in a certain proportion than the other. 
2nd. It is more intense when the percussion is on the part 
which is toward the longest diameter. 
3rd. It is only produced when the duration of the contact 
is very short, and the membrane of the cavity not tense, or 
the cavity is of a large size. — Allgein. Wien . Zeit., p. 474, 1 869. 
AIR IN THE VEINS AND ARTERIES. 
The results of some experiments by Dr. Uterhart, of 
Rostock, are — 
1st. That air injected in the veins at a distance from the 
heart has no effect on the health of the animal. 
2nd. Air injected in small quantity in the vessels in the 
proximity of the heart causes death preceded by symptoms of 
cerebral anhaemia. 
3rd. Air injected in large quantity in the arteries has no 
influence whether the injection is made in the central trunk 
or on the peripheric end of the vessel. — Berlin Klin. 
WochenscJi., p. 43, 1870. 
GLANDERS AND CARBON. 
The results of the observations of Semmer, prosector 
of the veterinary school at Dorpat, prove that glanders may be 
transmitted from one horse to the other by the intermediate 
volatile virus at the moment w’hen the animal which is ex- 
posed to the infection is predisposed to take glanders. 
Viborg, Wunderlich, and others have already spoken of 
the possibility of this transmission by the intermission of the 
products of the exhalation of the glandered horses. — Oester- 
reich Viertelj.f. w. Thierheilk , i, 1869- 
Garlach, director of the veterinary school at Berlin, has 
also ascertained that the cutaneous and pulmonary exhala- 
tions from horses affected with glanders is impregnated with 
the contagious virus. — JaJiresbericht der Thierarzneisch in 
Hanover. 
Semmer, after having reported that facts of transmission 
of carbon by volatile virus have, as it appears, been observed, 
adds, these facts, if confirmed, prove that there is no fixed 
contagious virus, and that for those hitherto considered as 
such, it is necessary before they take effect that they should 
