342 MEADOWS AND PASTURES 



it and feeding no other salt, is an effectual way of get- 

 ting them to eat a good deal of tobacco. Some will 

 naturally eat more than others. I have testimony from 

 many men that this treatment has been most helpful. 

 Where tobacco dust is fed, one may sprinkle it lightlty 

 with salt to encourage sheep to eat a good deal of it. 



Management Insuring Healthy Flocks. Two men in 

 America fought stomach worms all through the disastrous 

 years of the QO'S, when little was known to help; they 

 found light, they conquered the pests in a measure, and 

 kept on keeping sheep and studying flock management. 

 Finally each made a journey to England and studied the 

 conditions there with a view to solving the problem for 

 America. There they found hurdling the best answer 

 to the question. Independently of each other they reached 

 the same conclusions as to the practical solution of the 

 question in America. Dr. H. B. Arbuckle of West Vir- 

 ginia and the writer were the two men. But they wish 

 to give all due credit to the Department of Zoology of 

 the Bureau of Animal Industry at Washington for at 

 least giving accurate details of the history of the Hsemon- 

 chus contortus (formerly called Strongylus contortus), 

 for without the details that we now have no certain plan 

 could have been formulated. The basis of this plan is 

 the fact that lambs are born free from parasitic infection; 

 they are healthy. It is only necessary to keep them 

 healthy by preventing infection. Their mothers carry 

 over in their bodies the germs that will infect them in 

 the form of mature stomach worms, which when ripe 

 pass away in the droppings and thus infest the pasture. 

 When the temperature is below 40 F. the eggs will not 



