40 BULLETIN" 800, TJ. S. DEPARTMENT OF AGRICULTURE. 
LITERATURE CITED. 
Glover, G. H. 
1917. The Whorled Milkweed (Asclepias verticillata). Ainer. Jour. Vet, 
Med.. Vol. 12, No. 5, May, 1917, p. 303. 
Glover, Geo. H., Newsom, I. E., and Robbins, W. W. » 
1918. A new poisonous plant. Agr. Ex. Sta. Colo. Agr. Col., Bull. 246. 
Glover, Geo. H., and Robbins, W. W. 
1915. Whorled Milkweed (Asclepias verticillata). In Colorado plants 
injurious to live stock. Agr. Ex. Sta. Colo. Agr. Col., Bull. 211, 
p. 60. 
Gray, Asa. 
1886. Synoptical Flora of North America. Vol. 1, part 2, pp. 96-97. 
Humboldt. Bonplaxd, and Kunth. 
1818. Nova Genera et Species Plantarum. Vol. 3, pp. 188-189. 
Vail, Anna Murray. 
1898. Notes on Asclepias verticillata and some nearly related species. 
Bulletin Torrey Botanical Club. Vol. 25, pp. 173-182. 
1898. In Illustrated Flora of the United States, by Britton and Brown, 
Vol. 3, p. 12. 
Wooton and Standley. 
1915. Flora of New Mexico, pp. 510-511. (Contributions from the U. S. 
National Herbarium. Vol. 19.) 
PUBLICATIONS OF THE U. S. DEPARTMENT OF AGRICULTURE 
RELATING TO THE PLANT POISONING OF LIVE STOCK. 
AVAILABLE FOR FREE DISTRIBUTION. 
Oak-Leaf Poisoning of Domestic Animals. (Department Bulletin 767.) 
Prevention of Losses of Stock from Poisonous Plants. (Fanners' Bulletin 720.) 
Larkspur, or "Poison Weed." (Farmers' Bulletin 988.) 
The Loco- Weed Disease. (Farmers' Bulletin 1054.) 
The Cause of the " Spewing Sickness " in Sheep. (Leaflet A. I. 9.) 
Cicuta (Water Hemlock) as a Poisonous Plant. (Leaflet A. I. 15.) 
White Snakeroot or Richweed (Eupatorium urticsef olium ) as a Stock-Poison- 
ing Plant. (Leaflet A. I. 26.) 
Oak Poisoning of Live Stock. (Leaflet A. I. 32.) 
Notes on Larkspur Eradication on Stock Ranges. (Leaflet A. I. 34.) 
FOR SALE BY THE SUPERINTENDENT OF DOCUMENTS, GOVERNMENT PRINTING 
OFFICE, WASHINGTON, D. C. 
Cicuta, or Water Hemlock. (Department Bulletin 69.) Trice, 10 cents. 
Larkspur Poisoning of Live Stock. (Department Bulletin 365.) Price, 25 cents. 
Lupines as Poisonous Plants. (Department Bulletin 405.) Price, 10 cents. 
Stock-Poisoning Plants of the Range. (Department Bulletin 575.) Price, 50 
cents. 
Stagger Grass (Chrosperma muscsptoxicum ) as a Poisonous Plant. (Depart- 
ment Bulletin 710.) Price, 5 cents. 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAY UK PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHLNGTON, D. C. 
AT 
15 CEXTS PER COPY 
V 
