birds have been inoculated experimentally under various conditions. The 

 mortality from all causes, including two instances of a severe complication 

 with chronic respiratory agent, has not exceeded 2.3 percent. According 

 to repeated challenges and serological tests, the birds have resistance to 

 Newcastle disease at four weeks of age. During the field trials we have 

 been able to inoculate 10,000 birds in 45 minutes by the spray method 

 which in itself is a considerable time- and labor-saving device. 



W. R. DUNLOP 



OTHER ACTIVE PROJECTS 



A Study of Methods in the Development and 

 Managegment of Pastures for Growing Pullets 



R. C. RiNGROSE, R. M. Hatch, L. M. Potti;k 

 Soils 



(See Agronomy) 



Vegetables 



(See Horticulture) 



State Services 



Inspection of Fertilizers and Feedingstuffs 



In accordance with State laws regulating the sale of commercial fer- 

 tilizers and feedingstul^s. 113 samples of fertilizers and 707 samples of 

 feedingstuffs were analyzed during the year 1952-1953. Sixty-five of the 

 113 samples of fertilizers equaled or exceeded the guarantees. Deficiencies 

 when found were in general small and it is felt that manufacturers are 

 furnishing the farmer with a product that will do the job expected. The 

 results of these analyses are published in Bulletin 397 of the Agricultural 

 Experiment Station. 



The 707 samples of commercial feedingstufifs include the following : 

 656 samples representing ingredients and mixed feeds offered for sale to 

 the public, 23 samples of canned cat and/or dog foods found on sale, 26 

 samples were drawn in a study to determine the proper sampling tech- 

 nique for sampling "bulk delivery" feed, and 2 samples of special cases of 

 interest to the feed control supervisor were submitted for analysis. Of the 

 ingredient and mixed feed samples. 16.0 percent were deficient in protein, 

 9.4 ])ercent were deficient in fat, and 4.1 percent contained an excess of 

 crude fiber. A large number of these deficiencies were small. It is felt 

 that the manufacturers endeavor to comply with their guarantees. The 

 analytical results appear in Bulletin 403 of the Agricultural Experiment 

 Station. 



The series of 15 samples of feed supplied by the American Oil Chem- 

 ists Society and the 6 samples distributed by the Association of Feed 

 Control Officials were analyzed. Approximately 100 laboratories through- 



33 



