TENTH ANNUAL YEAR BOOK— PART X 



443 



stands open proportionately farther. In addition to this, it has the 

 advantage of being more easily bent than a larger block, and costs less, 

 as such material is sold Ijy volume. 



Fig. No. 16. 



The next size block shown, D, is a 5x8x12 inch block. Several silos 

 have been built of this size block, and perhaps in some it has offered 

 a slight advantage in that the thicker wall will offer a proportionately 

 greater resistance to the escape of heat from the silage. However, it is 

 more expensive and difBcult to handle than the matrial for 4-inch walls. 

 The block shown at E is a 5x8x16 inch block. For general work, this size 

 has several disadvantages. In the first place, few manufacturers make 

 it, therefore it cannot be considered a standard material. Also, it is 

 heavy to handle and must be bent considerably more than a short block 

 in order to lay smoothly in a wall of the same radius. The outer joints 

 are more open, and, if not bent, the wall is objectionably rough. 



For details of construction write Engineering Department, Iowa State 

 College of Agriculture and Mechanic Arts, Ames, Iowa, for Bulletin 

 No. 117. 



THE SHORT-FED CATTLE AT THE INTERNATIONAL, 1908. 



PURDUE UNIVERSITY AGRICULTUAL EXPERIMENT STATION BUL. NO. 142, VOL. XV. 



On August 1, 1908, the Experiment Station put in a load of high grade 

 Angus yearlings that had not received grain during the preceding win- 

 ter or summer, averaging in weight at that time 737 pounds per head. 

 They were used to secure additional data in regard to short feeding cat- 

 tle during the late summer and early fall months and were shown at the 

 International Live Stock Exposition held in Chicago in December, 1908, 

 in competition with cattle entered in the short-fed contest by practical 

 feeders in different sections of the country. The object of this work 

 was to compare the results of cattle feeding at the Experiment Station 

 with those secured by practical feeders who have had long years of 

 experience in the business and have been sufficiently successful to enter 

 into the International contest. The cattle were shipped to the University 



