328 
GEORGE FLEMING. 
In exceptional cases there is somewhat severe constitutional 
disturbance before the eruption appears. For instance, in the 
Wurtemberg Veterinary Reports for 18T7, mention is made of a 
cow which showed a rather high degree of fever: hot skin, quick¬ 
ened respiration, horripilation, and rigors from time to time. On 
the four teats appeared more than a score of pocks ; these con¬ 
tained a very small quantity of thick lymph, some of which was 
preserved in capillary tubes, and another portion removed by 
means of a fine hair-pencil and kept in glycerine. These portions 
were successfully employed in vaccination. The owner of the cow 
was accidently inoculated through milking the animal, a large pock 
forming on his hand. 
In studying cow-pox, it must not be forgotten that there is a 
spurious vaccinia, sometimes designated vaccinella or vaccinoides , 
a disease, or several forms of disease resembling cow-pox to some 
extent, but yet differing from it in several important features. It 
is generally observed soon after calving, and would seem to be 
contagious, as it attacks nearly all the cattle in a shed when one 
cow becomes affected. It appears to be very uncertain in its 
transmission to mankind, and to be also more or less enzootic. 
The symptoms are much like those of cow-pox, the only impor¬ 
tant differences being in the character of the exanthem, and the 
lesser degree of virulency of the infecting agent. The eruptions 
of spurious vaccinia are divided into three groups. One consists 
of acuminated papules or pustules, which may or may not be de¬ 
veloped at the same time as the true pock ; they appear as small 
red nodes about the size of a grain of millet, destitute of areola 
and umbilicus, and soon changing into a conical pustule, the con¬ 
tents of which quickly desiccate, and form a crust—the whole 
process only occupying from four to six days. The eruption may 
appear several times, however, so that the entire period will ex¬ 
tend over a number of weeks. The second group is composed 
of hard indolent tumors, the so-called steinpocken of the German 
veterinarians ; they vary in size from that of a pea to that of a 
nut, are somewhat red at first, and have no areola; or 
they may appear as a kind of warty excrescences on the skin 
of the udder. They frequently remain unaltered for weeks, or 
