124 ELEMENTARY AGRICULTURE 
rian can vaccinate the whole herd in a short time, mak¬ 
ing them immune from cholera as long as the hogs live. 
QUESTIONS 
1. Why are hogs important on the farm? 
2. Why is the hog of to-day different from the old razor-back? 
Fig. 90— Pig club pigs. One of these pigs weighed four hundred pounds at 
eight months of age. 
3. Describe the Duroc hogs. 
4. What are the peculiar markings of a Hampshire? 
5. How are hogs registered? 
6. What is a scrub? 
7. Tell why he is not profitable. 
8. Describe a good type of market hog. 
9. Discuss the proper feeding of the hogs. 
10. How old is a pig when he is weaned? 
11. Prepare a list of grain and green feed used for feeding hogs. 
