158 STATE BOARD OF AGRICULTURE. 



staiuiug ui-^ani.sm was oblaiiu'd in [.inc ciilinrcs iind i»i'esented the 

 followinir (•haractenstics : 



Morpliological — - 



Non-iiiolilc rod, round oiids. 



Size, 1.5 to 0.5 microns l»_v .2 (o .5 mimms. stiiincd willi weaic 



solution of fuelisin. 

 Gram positive. Stains readilv with all aniline dyes, 

 rnltural— 



Auai- streak: growth abnndant. Hat, glistening, Iranslncent. 



Agar colony: small, round, slightly raised with smooth border, 



grayish white, translucent, 

 (lolatin slab: growth best at top. filiform, no liquefaction. 

 iJlinns milk : unchanged. 

 Plain milk: unchanged. 

 Nutrient brolh: growth unifoim throughout. Sediment viscid mi 



agitation, abundant. 

 Dextrose bouillon : no gas, acid produced. 

 Saccharose bouillon : no gas, acid produced. 

 Lactose bouillon: no gas, no change. 

 Thermal death point 55°C. 10 minutes. 

 Non-pathogenic for rats, guinea pigs and rabbits. Eti'ects on calves 



not detemiined. 



LUNG WORMS IN CALVES. 



On Oct. 27, 1912, I visited the farm of Mr. H. H. 



West Branch to investigate a disease of calves. On this farai I found 

 17 mature cows, 8 j-earlings and ,"> calves 5 to S months old. Five of 

 the latter were in poor condition, bowels loose, slight cough and rough 

 coat. These calves were running on clover and June grass pasture. 

 Were fed skim milk out of dirty wooden trough and were not housed at 

 night. Tn pasture were several low. wet, marshy places which are con- 

 ducive to the ])ropagation of certain animal i)arasites. Since July, 

 1912, the owner has lost S calves 4 to 8 months of age. The most ser- 

 iously affected calf at the time of my visit was a heifer 5 months old, 

 considei'ably emaciated, roughened coat, temp. 104.0. res]). 130 and breath- 

 ing witli much difficulty and through mouth. Whitish discharge from 

 nostrils. Weak, rapid i)ulse and injected conjunctiva. This calf had 

 been visibly affected about two weeks; had been given three doses of 

 oil and turpentine in last two weeks and was gradually getting worse. 

 In pasture was calf dead 2 days before. Weather was cool and calf 

 fairly well preserved. The only significant pathologic findings were 

 emaciation and a broncho-]meumonia due to the presence of countless 

 nund)ers of lung Avorms (Strongyhis micruiiis) in the trachea and bron- 

 chial tubes. In the trachea was a roll of them about as large as the 

 index finger and about three inches long. Bronchial and mediastinal 

 lym]th glands were enlarged and edematous. 



Tlie treatment suggested wiis removal of calves from infested pasture, 

 l)etter care and medicinal treatment consisting of intratracheal in- 

 jections of gasoline. It was suggested that he arrange to place next 

 generation of calves on high dry pasture which had not been used for 

 cattle the previous year, and since some of the older cows ore probably 



