580 
D. E. SALMON. 
illation to the dog, the rabbit, and the fowl. It proved it to b< 
a specific disease and that the virus existed in the saliva. Ii 
this it confirmed the results of clinical observations extending 
over many years. 
Count Salm-Reifersheid* in 1813 recorded experiments ii 
which several dogs were inoculated, part with fluid and par 
with dried saliva from a rabid dog. These became affecte< 
with rabies after eight to ten days. 
Berndtf in 1822 inoculated four wethers with saliva fron 
the mouth of an ox which had died of rabies. The inoculatioi 
was made by smearing the saliva over a wound made by an in 
cision through ihe skin of the limbs. All of these sheep cor 
tracted rabies, the inoculation period being 22, 25, 26 and 3 
days. 
Hertwig inoculated fifteen dogs during the years 1823, *82. 
and 1825. The material used was saliva from rabid anirnak 
and this was placed in lancet punctures made in the skin of th 
frontal region, except with two animals in which the inocula 
tion was made at the back of the neck. Six of these dogs con 
tracted rabies, the periods of incubation being 19, 27, 32, 34,3' 
and 40 days. J 
On June 14, 1841, Prof. Rey, of the veterinary school 0 
Lyons, France, allowed a dog brought to the hospital affectet 
with rabies, to bite a ram on the nose and right foot. Th 
wounds cicatrized in five days. In thirteen days (June 27) th 
animal showed the first symptoms of rabies. The followin' 
day it became furious when approached, violently attacke< 
objects presented to it, threw itself against the walls and th' 
bars of its pen or rushed upon persons who came near it. I 
seized its chain with its teeth, attacked another sheep placet 
t 
* Allgem. Anzeiger, 1813, No. 1. Quoted by Hogyes, lo;. cit p. 32, 
■J Journal der practischen Heilkunde, G. W. Hufeland, 1824, Nov,, pp. 59-61. 
§ 
J Beitrage zur nahern Kentniss der Wuthkrankhekodor Tollheit der Hunde, voi 
Oberthierarzt Dr. Hertwig. Journal der practischen Heilkunde von C. W. Hufelanc 
i 828 , pp. 112-129. 
