36 CIRCULAR 824, U. S. DEPT. OF AGRICULTURE 
LITERATURE CITED 
(1) Dawson, W. M. 
1934. THE PULLING ABILITY OF HORSES AS SHOWN BY DYNAMOMETER TESTS IN 
ILLINOIS. Amer. Soc. Anim. Prod. Proce. 1933: 117-121, illus. 
(2) FisHer, R. A. 
1946. STATISTICAL METHODS FOR RESEARCH WORKERS. Ed. 10, 354 pp., illus., 
London. 
(3) Jackson, B. F. 
1942. A BREEDING ANALYSIS OF THE LEADING SIRES AND STAKE WINNERS OF 
1940. Natl. Horseman 78 (2): 8-9 and 60. 
(4) LauGuauin, H. H. 
1934. RACING CAPACITY IN THE THOROUGHBRED HORSE. I. MEASURE. OF 
RACING CAPACITY. Sci. Monthly 38: 210-222, illus. 
= 
(5) 
1934. RACING CAPACITY IN THE THOROUGHBRED HORSE. II. INHERITANCE OF 
RACING CAPACITY. Sci. Monthly 38: 310-821, illus. 
(6) Pures, R. W. 
1946. THE UNITED STATES MORGAN HORSE FARM—ITS WORK AND OBJECTIVES. 
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(7) ——— Brier, G. W., and Lampert, W. V. 
1940. A STUDY OF SOME PROBLEMS INVOLVED IN MEASURING PERFORMANCE IN 
THE HORSE. U.S. Dept. Agr. A. H. D. No. 75, 34 pp., illus. (Mimeo- 
graphed.) 
(8) —— Mapsen, M. A., and Smirtu, H. H. 
1940. DYNAMOMETER TESTS OF DRAFT HORSES. Utah Agr. Expt. Sta. Cir. 114, 
14 pp., illus. 
SPEELMAN, 8. R., and Wiuiams, J. O. 
1942. HORSE BREEDING RESEARCH AT THE U. S. MORGAN HORSE FARM. Vt. 
Horse and Bridle Trail Bul. 6, pp. 7-14, illus. 
(10) SNEDECcOR, G. W. 
1946. STATISTICAL METHODS APPLIED TO EXPERIMENTS IN AGRICULTURE AND 
BIOLOGY. Ed. 4, 485 pp., illus. Ames, Iowa. 
(11) Sreets, D. G. 
1944, A GENETIC ANALYSIS OF RECENT THOROUGHBREDS, STANDARDBREDS 
AND AMERICAN SADDLE HORSES. Ky. Agr. Expt. Sta. Bul. 462, 27 pp., 
illus. 
(12) Wriiurams, J. O., and Jackson, W. 
1936. IMPROVING HORSES AND MULES. U.S. Dept. Agr. Yearbook 1936, pp. 
929-946, illus. 
(9) 
: ere rbot 
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