BUREAU OP ANIMAL INDUSTRY. 469 



On September 15 1 visited the herd of Mr. Jolin Boyd, of Elmliurst, 

 111., at the request of the State live stock sanitary commission. I found 

 there five cows which had been isolated because it was supposed they 

 had been affected with pleuro-pneumonia in a mild form. In two of 

 these I could find no evidence of lung disease by auscultation and per- 

 cussion ; in a third there was only crepitation and slight loss of reso- 

 nance over a small portion of the right lung. In the two remaiD iug ones 

 there was greater dullness on percussion and a decrease in the normal 

 sounds of respiration at the same point, but even with these there were 

 no very positive indications of serious lung disease. In examining the 

 herd of cows among which no symptoms of disease had ever been no- 

 ticed, one animal was found with loss of respiratory sounds and dullness 

 over a part of the right lung. With this animal the signs of lung 

 lesions were more positive than with either of those which had been 

 previously isolated. The animal was removed from the herd and placed 

 with those referred to above as suspicious animals. The third animal 

 referred to was unthrifty, and was believed to be suffering from tuber- 

 culosis, though no positive signs of this disease were discovered. The 

 owner afterwards concluded to slaughter her, which was done in the 

 presence of the Chief of this Bureau November 19. The post mortem 

 showed that the only lesion of the lungs of old standing that could bo 

 made out was the adhesion of the posterior portion of the right lung 

 to the costal pleura. There was some congestion of the anterior part of 

 this lung with a number of collapsed lobiUes, but no encysted portions 

 to indicate a former serious attack of lung plague. 



At the time of my visit, in Septembei, x waa requested by. the sanitary 

 commission to take charge of the quarantine of this herd, and was as- 

 sured of the co-operation of the State authorities to make this quarantine 

 effective. It was believed that such a quarantine, maintained under 

 both the national and State laws, would give better satisfaction to the 

 authorities of the other States and relieve the cattle trade of Illinois 

 from the restrictions that had been placed upon it. Ao it was nearly a 

 year since any of these animals had shown symptoms of the acute dis- 

 ease, and as the evidence of the lesions at the time of the examination 

 was so slight, it was believed that a quarantine maintained until a period 

 of eighteen months had elapsed since the last symptoms were observed 

 would be sufficient to prevent any danger of future outbreaks. By my 

 recommendation Dr. A. H. Baker, of Chicago, was appointed to visit 

 this herd at short intervals and examine the isolated animals in order to 

 be certain that no symptoms showed an extension of the disease during 

 the time the animals were held in quarantine. These animals have all 

 been doing well since they have been under our supervision, and there 

 is no reason to suppose that there wiU be any further cases of lung 

 plague on this farm. Indeed, the period of quarantine has already been 

 considerably longer than is usually required in such cases. Since there 

 are a few instances where pleuro-pneumonia has been disseminated by an 

 animal fifteen months after it has shown symptoms of the acute disease, 

 it was decided to extend the period of quarantine in this case to eight- 

 een months after the last symptoms of this nature had been seen. 



VTBGINIA AND WEST VIRGINIA. 



July G, 1885, Messrs. Timberlake & Maslin, of Middletown, Ya., sent 

 a communication to the Department of Agriculture stating that 2 of 

 their cows in a herd of 6 were taken July 1 with an unknown disease 

 which was supposed to be pleuro-pneumonia, and they asked that an in- 



