40 PASTORAL AND AGRICULTURAL BOTANY 



slow and toward the end rapid and weak. There is sugar in the urine. 

 Death may come suddenly or be postponed in chronic cases for several 

 weeks. 



Poisonous Principle. According to Lohmann there is probably 

 an alkaloidal nerve poison in species of Equisetum called by him equisetin. 



Treatment. Stop the feed containing horse-tail, follow with a purga- 

 tive pill of one ounce of Barbadoes aloes, one or two drachms of ginger, and 

 sufficient soft soap to make a ball. This is put down the throat of the 

 horse at one dose following with bran mashes night and morning until 

 the digestive tract is cleared. Nux vomica is later administered to 

 overcome the muscular incoordination. 



BIBLIOGRAPHY 



ATKINSON, GEORGE FRANCIS: Mushrooms Edible, Poisonous, etc. Andrus & Church, 



Ithaca, N. Y., 1900, pages 52-76; 242-252. 

 BROWN, H. B. and RANCK, E. M.: Forage Poisoning Due to Claviceps Paspalin Pas- 



palum. Technical Bull. 6, Mississippi Agricultural Experiment Station, Feb., 



IQIS- 

 DOUGLASS, BEAMAN: Mushroom Poisoning. Torreya, 17: 171-175, October, 1917; 



207-221, December, 1917. 

 FORD, W. W. : The Toxins and Antitoxins of Poisonous Mushrooms, Amanita phalloides. 



Journ. Inf. Dis., 3: 191; The Distribution of Poisons in Mushrooms. Science, 



30: 97-108. 

 HAAS, PAUL and HILL, T. G.: An Introduction to the Chemistry of Plant Products. 



Longmans, Green and Co., New York and London, 1917. 

 HARSHBERGER, JOHN W.: Ergotism Account of an Outbreak at Scranton, Pa., due to 



Eating Red Top, Agroslis vulgaris with Claviceps microcephala (Walh.) Tul., Rept. 



Pa. Dept. Agr., 1902: 160; A Text-book of Mycology and Plant Pathology. P. 



Blakiston's Son & Co., Philadelphia, 1917. 

 LONG, HAROLD C.: Plants Poisonous to Live Stock. Cambridge at the University 



Press, 1917. 

 MclLVAiNE, CHARLES: One Thousand American Fungi. The Bowen-Merrill Company, 



Indianapolis, Ind., 1900. 



MURRILL, WILLIAM ALPHONSO: Edible and Poisonous Mushrooms. New York, 1916. 

 PAMMEL, L. H.: A Manual of Poisonous Plants. The Torch Press, Cedar Rapids, 



Iowa, Part I, 1910; Part II, 1911. 

 RICH, F. A. and JONES, L. R.: A Poisonous Plant the Common Horsetail (Equisetum 



arvense). Bulletin 95, Vermont Agricultural Experiment Station, June, 1902. 

 SCOTT, J. L.: Golden-rod Killing Horses. Garden and Forest, viii: 477-478, November 



17, 1895. 

 WELLS, H. GIDEON: Chemical Pathology. W. B. Saunders Company, Philadelphia 



and London (second edition), 1914. 



