REVIEW 367 
burn out the grate bars,.as well as stop the drafts. The glass 
gauge should be examined frequently to ascertain whether there 
is plenty of water in the system. A desirable feature is a float 
valve on the expansion tank which will permit the automatic 
inflow of water when needed. 
A thermometer connected with the heater to register the 
temperature of the water is very desirable, but, if one of these 
instruments is installed, it should be of reliable make, as a good 
deal of dependence is put upon it. All pipes in the brooder house 
which are not actually needed for direct radiation of heat should 
be covered with asbestos to conserve the heat, and all pipes used 
directly for heating should receive a good coat of paint to prevent 
rust. 
REVIEW. 
1. Describe two distinct systems in artificial brooding. 
2. What three factors will aid in determining which type to select? 
3. Discuss types and possibilities of the long brooder-house system. 
4. Describe three types of colony brooders. 
5. Discuss the possibilities of the “gasoline brooder house.”’ 
6. What are the four requirements of a successful brooder? 
7. How would you prepare a brooder for young chicks? 
8. How can the chilling of the chicks in transferring them be prevented? 
9. Discuss proper brooder temperatures for different times. 
10. Enumerate twelve principles of baby-chick feeding. 
11. Why is ash so important? 
12. What is the reason for not feeding soon after hatching? 
13. Outline a desirable method of feeding baby chicks for the first six weeks; 
give rations. 
14. Give five common causes of death of young chicks. 
15. Discuss prevention against the white diarrhoea disease. 
16. What are the dangers at the time the heat is removed? 
17. What points are of special importance in locating and installing a heating 
plant for a long brooder house? 
References.—The Principles of Brooding, by Rice and Rogers, Cornell 
Bulletin 277. A Successful Brooder House, by F. H. Stoneburn, Connecticut 
Bulletin 33. Raising Chickens, by James E. Rice, Cornell Reading Course 
Bulletin 19. Raising Chicks Artificially, by Horace Atwood, West Virginia 
Bulletin 98. Feeding Experiments with Chickens, by J. Williard Bolte, Rhode 
Island Bulletin 126. Seven Methods of Feeding Young Chickens, by Rice 
and Nixon, Cornell Bulletin 282. The Mortality of Incubator Chicks, by 
G. W. Fields, Rhode Island Bulletin 61. Hatching and Rearing Chickens, 
by W. R. Graham, Ontario Bulletin 163. Skim Milk for Growing Chicks, 
by Plum and Anderson, Indiana Bulletin 76. The Baby Chick, by T. E. 
 Quisenberry, Missouri Poultry Station Bulletin 1. Working Plans of N. Y. 
State Brooder House, Cornell Circular 4. 
