482 
Report on the Contagious and 
acid on the floor of the shed has been followed by the cessation 
of the disease after a few animals have been attacked, and there 
is no doubt that even the malignant cattle-plague was kept in 
check in several instances by the constant employment of car- 
bolic acid, although the animals succumbed as soon as they 
were removed from its protective influence. 
Other agents may be equally efficacious when carbolic acid is 
objectionable. Chloride of zinc, chloride of lime, chlorine gas, 
sulphurous acid gas, are all valuable under different circum- 
stances, and the list m<ay be extended according to the experience 
of the person who has the sanitary charge of the district where 
the malady prevails. All the measures employed must be based 
on the principle of guarding against the introduction of disease 
by quarantine of newly purchased stock, and preventing its 
spread by isolation and disinfection. Every diseased animal 
must be treated as a manufactory of the specific poison, and 
every individual and substance which comes in contact with 
the animal as a probable medium of its extension. 
The question will always return, is foot-and-mouth disease 
an affection of such a serious character as to render this degree 
of circumspection necessary or desirable ? And the answer must 
be left to the agriculturists of the kingdom. If they decide 
that the object is worth the cost, there need be no difficulty in 
carrying out the regulations which have been suggested. 
XIX. — Report on the Contagious and Infectious Diseases of 
Animals referred to in the Contagious Diseases (^Animals) 
Act, 1869, especially with respect to their degree of prevalence in 
1872. By Professor G. T. Brown, Chief Inspector of the 
Veterinary Department. 
[Reprinted from the Eeport of the Veterinary Department for the Year 1872.] 
Cattle plague, pleuro-pneumonia, foot-and-mouth disease, 
sheep-pox, sheep-scab, and glanders are the maladies which are 
enumerated in Section VI. of the Act, in explanation of the 
term " contagious or infectious disease." The section gives 
power to the Privy Council to declare from time to time any 
disease to be a contagious or infectious disease for the purposes of 
the Act, but it has not yet been found necessary to add to the list. 
Owing to the modifications which result from certain con- 
ditions of climate it is occasionally the case that an outbreak of 
an entirely new disease is reported, but, on inquiry, it has 
always been found that the novel affection is a well-known 
malady, slightly altered l)y the circumstances of the locality in 
which it has appeared. Climate undoubtedly affects the deve- 
