28 The Lung Plague of Cattle. 



D. Contagion throiigh the Infected Buildings. — This form 

 of contagion is so exceedingly common that an apology 

 would be needed for referring to it were it not for the 

 hardihood of some in denying all mediate contagion. Dis- 

 tillery stables, where the cattle of many owners mingle, 

 soon become infected in infected localities, and from that 

 time onward they remaia infecting, though all sick ani- 

 mals are excluded. Dealers' stables sujBfer in a similar 

 way ; and thus, after a dealer has kept an infected animal 

 in his place, he continues for months or years to dissemi- 

 nate cattle that infect others, though it may be impossible 

 to find a sick beast on his premises at any time in the in- 

 terval. One or two cases may, however, be particularized : 



John MiUer, Farmingdale, L. I., traded with a 

 Brooklyn dealer, January 1st, 1879, for a cow, which, soon 

 after, fell ill and died. He shortly after purchased an- 

 other cow, and placed her in the same stable, but she 

 also sickened and died. After this, he placed a caK in 

 the stable, but this also perished; and at present the 

 stable remains unoccupied. 



Mrs. P. Gregory, 12th street, Brooklyn, had two cows 

 and one calf in her stable in the end of February, 1879. 

 When visited, one cow was very sick, and both were 

 destroyed, the stable being afterwards washed with dis- 

 infectant liquids. The calf was disposed of for veal. 

 Two months later, Mrs. G. purchased a new cow from a 

 man who had kept her as a family cow for some years, 

 and put her in the same stable in which the first had 

 stood. Ten days after, she showed symptoms of disease, 

 and, when slaughtered, showed the characteristic lesions 

 of lung fever. 



Mr. Addick, Sunnyside, near Dutchkills, L. I., kept on 

 an average 22 cows, and for two years has lost heavily. 

 Early in the present year he left the place, and the stable 

 was let to Patrick HoUihan, who bought in fresh cows. 

 Some of these he got May 1st of J. & J. Wheeler, dealers, 



