EXTRACTS FROM EXCHANGES. 
217 
buried for thirty-eight days, the virulency of the contagion of 
rabies was preserved, while in cadavers in the open air, this 
could only be proved for twenty-one days. Ratz employed for 
examination the brains of two dogs, which were buried for 
twelve and three weeks, respectively. From the completely 
decomposed brain of the emulsion, some was injected subdurally, 
and some intramuscularly ; both inoculations w T ere without any 
effect. Ratz then directed his experiments in the way in 
which he infected the test animals with the street virus, and 
after their death from marked rabies, they were buried. In dif¬ 
ferent intervals, subdural and intramuscular injections were 
made into rabbits. This experiment led to the following re¬ 
sults : Inoculations with brain which was buried from fourteen 
to twenty-four days, produced by either subdural or intramuscu¬ 
lar inoculations, characteristic rabies on the test animals ; most 
certainly this virus was weakened. While using the fresh 
brain, the animals developed the symptoms of rabies after fifteen 
to sixteen days, and died two to four days after; so by employ¬ 
ing the decomposed brain, the time of incubation was lengthened, 
fluctuating from eighteen to twenty-nine days, and death only 
occurred after twenty to thirty-one days from the time of injec¬ 
tion. —(Vet erin arms .) 
To the Auscultation of the Fungs in Cattle [ Dr . 
Ellinger \.—It is recognized as a fact, that the strength and 
rapidity of respiration has a great influence on the intensity of 
the normal and pathological respiratory sounds. The human 
practitioners, therefore, when auscultating the lungs, order the 
patient to take deep inspirations, but there is no advantage in 
allowing an exertable and rapid respiration. But often one 
hears best by a slightly deepened respiration. In our domes¬ 
ticated animals, we have but slight power to change their 
respiration. The veterinary practitioner having this in view, is 
advised to have the animal exercised before examination. As 
a result of the quick or slow movement, not only an increase in 
the number of respirations is obtained, but frequently coughing 
will result with expectoration. So Roder succeeded in obtain¬ 
ing expectoration, in which he proved the presence of the 
tubercle bacilli from a cow, by trotting her several times up and 
down the yard. But, besides, by this method, the respiratory 
sounds are more intense and easier to hear. Roder advises as a 
practical method the following procedure : After observing 
the animal in the stable, it is exercised and brought back. 
During the auscultation of the lungs, the nostrils are covered 
