458 
EXTRACTS. 
be cases of pi euro-pneumonia. In the slaughter-houses of New 
York and Brooklyn, seventy-six animals were examined and 
fourteen were cases of the disease. In many instances of rein¬ 
spection it was found that the animals diseased on first inspection 
were dead, and the cases which presented themselves were new 
ones. The result of the investigation has been to give a definite 
idea of the extent of the disease, and to secure a great improve- 
men in the condition of the stables in which the animals are 
confined. It is evident, moreover, that the owners of the cows 
are satisfied that the work of inspection is of great benefit to 
their business as milk-producers, and they have in many cases 
applied for the inspection where they suspected the disease might 
exist, and also to satisfy the Boards of Health that they have 
compiled with the sanitary regulations. 
The experiments relative to the contagiousness of pleuro¬ 
pneumonia as found in the stables inspected, which are conducted 
at the station on Barren Island, have developed many important 
facts; and in connection with similar work at the station in 
Washington have secured much valuable information which will 
be laid before the public in detail in the report of the chief of 
the bureau. The contagiousness of the disease found here has 
been proved beyond a question, and we are confident that further 
investigation in this direction will enable us to decide upon the 
virulence of the disease as found in America, the time of incu¬ 
bation here and the possibility of controlling it in those sections 
in which it may unexpectedly appear. The Brooklyn Board of 
Health, through the commissioner, Dr. J. H. .Raymond, have 
expressed great satisfaction with the work going on at Barren 
Island station, as it enables them to decide as definitely as possi¬ 
ble the precise nature of the disease, about which some doubt 
seems still to exist in the minds of many who are interested in 
the matter scientifically and economically. The board has been 
entirely disposed to consider our work as that of professional in¬ 
vestigators, and not that of “ non-professional ” inquirers. We 
are happy to state that correspondence with the Department of 
Agriculture upon enlarging the sphere of these experiments, as 
bearing on the production of healthful milk, will be entered upon 
