HUMAN AND ANIMAL VARIOLAS. 
435 
tended (barefoot) sheep affected with variola, had a number of 
discrete and confluent pocks on both feet. This transmission oc¬ 
curred also to one of Korner’s own children. On the back of the 
boy was developed a pock, which finally became as large as a 
five-pfening piece; there was severe eomeomitant fever. The 
child appears to have been inoculated while Korner was charging 
some capillary tubes with sheep-pox lymph from a pipette, a drop 
of the fluid, it is supposed, having fallen on him. 
Roll has unsuccessfully attempted to inoculate cattle with 
sheep-pox, and sheep with cow-pox; but Zundel* * * § has given an in¬ 
stance in which two cows were directly infected through cohabita¬ 
tion with diseased sheep. Haubner mentions that inoculation 
with small-pox matter has sometimes produced pustules on the 
dog and pig; but reinoculation from these did not cause the mal¬ 
ady in sheep. ITertwig and Hering assert that the malady is 
readily communicated to goats in a true form, and may be trans¬ 
mitted from them to sheep. In the goat the pustules are usually 
smaller, according to Giesker, and the general disturbance is less 
marked. But transmission is very far indeed from certain, as 
goats very often associate with sheep without becoming affected 
Hering knew of an instance in which fifty-four goats grazed with 
diseased sheep, and only ten became sick. According to Kersten, 
Lenherdt, Spinola, and Gerlach, reciprocal inoculation of goats 
and sheep is always successful; while according to the observa¬ 
tions and experiments of Gasparin, Dominick, Curdt and Spinola, 
and, still more recently, Gerlach, there appears to be a close 
identity between the variola of hares and rabbits and that of 
sheep, inoculations from one species to the other always yielding 
positive results. 
Sheep have a kind of variola known to the Germans as 
“ Steinpocken ” or “ Aaspocken ” ( Variola tuberceuosa , Vari¬ 
cella oviuwi). It has been described by Haxthausen,f Hoftrich- 
ter,f and Hering.§ 
* “ Journal de Med. Veterinaire de Lyon,” 1867, p. 185. 
t Rust’s Magazine, band 29. 
t Henke’s, “ Zeitscbrift,” 1831. 
§ “ Specielle Patbologie und Merapie fiir Thierarzte,” p. 389. 
