68 MISC. PUBLICATION 2 81, U. S. DEPT. OF AGRICULTURE 



Marsh, C. D., and Clawson, A. B. (1250) 



ASTRAGALUS TETRAPTERUS, A NEW POISONOUS PLANT OF UTAH AND NEVADA. 



U. S. Dept. Agr. Circ. 81, 7 pp., illus. 1920. 

 and Roe, G. C. (1251) 



THE "ALKALI DISEASE" OF LIVESTOCK IN THE PECOS VALLEY. U. S. Dept. 



Agr. Circ. 180, 8 pp., illus. 1921. 

 May, W. L. (1252) 



WHORLED MILKWEED. THE WORST STOCK-POISONING PLANT IN COLORADO. 



Colo. Agr. Expt. Sta. Bull. 255, 39 pp., illus. 1920. 



Morris, H. E., and Welch, H. (1253) 



plants poisonous to livestock in Montana. Mont. Agr. Expt. Sta. Circ. 

 134, 28 pp., illus. 1927. 



Ormsby, O. B. (1254) 



a poisonous California plant. U. S. Dept. Agr. Monthly Kept. 1873: 

 503-504. 1873. 



St. John, H. (1255) 



A REVISION OF THE LOCO-WEEDS OF WASHINGTON. Biol. SoC. Wash. PrOC. 



41: 97-106. 1928. 



Sampson, A. W., and Malmsten, H. E. (1256) 



stock-poisoning plants of California. Calif. Agr. Expt. Sta. Bull. 593, 

 90 pp., illus. 1935. 



and Parker, K. W. (1257) 



ST. JOHNSWORT ON RANGE LANDS OF CALIFORNIA. Calif. Agr. Expt. Sta. 



Bull. 503, 48 pp., illus. 1930. 

 Sifton, H. B. (1258) 



CANADIAN PLANTS INJURIOUS IN PASTURES AND ON THE RANGE. Canad. 



Vet. Rec. 3: 9-13, 88-92. 1922. 



Slade, H. B. (1259) 



some conditions of stock poisoning in idaho. Idaho Agr. Expt. Sta. 

 Bull. 37, pp. [159J-190, iUus. 1903. 



Smith, C. P. " (1260) 



A DISTRIBUTIONAL CATALOGUE OF THE LUPINES OF OREGON. Stanford 



Univ. Contrib. Dudley Herbarium, 1, 55 pp. 1927. 

 Swingle, D. B., and Welch, H. (1261) 



POISONOUS PLANTS AND STOCK POISONING ON THE RANGES OF MONTANA. 



Mont. Agr. Expt. Sta. Circ. 51, 23 pp., illus. 1916. 

 Thomson, R. B., and Sifton, H. B. (1262) 



A GUIDE TO THE POISONOUS PLANTS AND WEED SEEDS OF CANADA AND THE 



northern states. 169 pp., illus. Toronto, 1922. 

 Van Es, L., and Waldron, L. R. (1263) 



SOME STOCK POISONING PLANTS OF NORTH DAKOTA. N. Dak. Agr. Expt. Sta. 



Bull. 58, pp. [321]-352, illus. 1903. 



Wilcox, E. V. (1264) 



plant poisoning of stock in Montana. U. S. Bur. Anim. Indus. Rept. 

 1900: 91-121, illus. 1901. 



Wooton, E. O. (1265) 



the larkspurs of new mexico. Bull. Torrey Bot. Club 37: 31-41. 1910. 



See also Anderson {1025), Davy (800), Fleming (1413), Jones (168), and 

 Vasey (1377). 



CHEMISTRY OF POISONOUS PLANTS 



Publications treating of the chemistry and toxicity of poisonous range plants, 

 and the chemically poisonous properties of supplemental feeds and concentrates. 



Alsberg, C. L. (1266) 

 chemical studies upon the genus zygadenus. Science (n. s.) 39: 958. 

 1914. 

 and Black, O. F. (1267) 



LABORATORY STUDIES ON THE RELATION OF BARIUM TO THE LOCOWEED 



disease. U. S. Bur. Plant Indus. Bull. 246: 39-61. 1912. 



