26 



In all cases where post inortcm examination was made on 

 hogs having paralysis of the hind quarters or limbs we have 

 found the kidney fat worm (Slrongylus pinguicola) in the 

 kidney fat, the kidney, sublumbar muscles and in one instance 

 in the spinal canal under the dura mater. This does not de- 

 clare it the actual cause of the paralysis but it may be the real 

 or an associate cause. 



The Senior Veterinary Medical students under my direction 

 collected 180 specimens of horse flies of the Tabanidae family, 

 all of which were collected from September 18 to October 20, 

 1916. This period covers the life of longevity of the adult 

 Tabanidae at Auburn, Ala. The egg laying period has not been 

 'determined for this place, but it appears to extend from June 

 .until some time in August. 



A test of the action of the bitter weed (Heilenium tenuifol- 

 hun) on cattle, dogs and horses was made. No distinct effect 

 was apparent in cattle except the bitter taste in milk. In the 

 dog it produced nausea, vomiting and depression of tempera- 

 ture. In the horse in one case it produced dullnei^s, dry mouth, 

 depressed the pulse from 38 to 28, temperature from 100 to 91) 

 and respiration from 11 to 7 and in four hours it produced 

 purgation. The animal remained sluggish for several days there- 

 after. This horse was fed 2% gallons of the plant mixed with 

 2% gallons of oats. Another horse w^as fed three gallons of 

 the bitter weed and the pulse became weak and slow, respira- 

 tion retarded, mucous membranes pale, soft feces passed 

 freciuently, cold sweat appeared and the horse became sleepy 

 and sluggish. From these and other tests it appears that bit- 

 ter weed is toxic for horses, mules and dogs but apparently 

 not toxic for cattle. 



Another series of tests were made to determine the toxic 

 efTects of Eupatorium ageroides. Apparently it produces pro- 

 gressive degenerative change in the red blood cells, polymor- 

 phonuclear cells, and eosinophiles, and in the cat, dog and 

 goat it failed to produce any symptoms resembling "trembles." 



Quite a large number of ovaries from sows and gilts that 

 had been fed peanuts were examined to see if any changes 

 were produced by this feed that might produce sterility. No 

 definite results have been determined. 



