(18) 
(19) 
Research Series, No. 2. The Tulane University of Louisiana, New 
Orleans. 
Roig y Mesa, Juan Tomas. 1945. Plantas Medicinales, Aromaticas y 
Venenosas de Cuba. Parte I. Habana. 384. 
Guatemala Indigena. Marzo de 1971. Aspectos de la Medicina Popular 
en el Area Rural de Guatemala. Vol. VI, No. 1. 
Dieseldorff, Erwin P. 1940. Las Plantas Medicinales del Departamento 
de Alta Verapaz. Second Edition. Guatemala. 1977, 45. 
Serrano, Manuel. 1949. ‘‘Ixbut, Euphorbia lancifolia Schlecht. en la 
Republica de Guatemala.’’ Unpublished report for Merck & Co., Inc. 
Time magazine. August 1, 1949. 38. 
del Pozo, Efrén C. 1949-1952. Unpublished reports concerning ixbut for 
Merck & Co., Inc. 
Gandara, Guillermo. 1929-1930. *‘La Hierba de la Leche, Euphorbia 
lancifolia..’ Memorias y Revista de la Sociedad Cientifica Antonio 
Alzate. Tomo 52. Nos. 5-8, 237-246. Mexico. 
Aguilar, G., José Ignacio. 1947. Forrajera de porvenir para la ganade- 
ria. Ixbut. El Rancho Mexicano. 3 (24). 8-9. 
Sievers, A. F., Archer, W. Andrew, Moore, Rufus H. and McGovran, 
E.R. 1949. Insecticidal Tests of Plants from Tropical America. Scien- 
tific Notes. Journal of Economic Entomology. Vol. 42, No. 3, 549-551. 
Squibb, Robert L., Braham, J. Edgar and Scrimshaw, Nevin S. 1957. 
Utilization of the Carotenoids of Bamboo Leaves, Teosinte and Ixbut 
by New Hampshire Chicks. Poultry Science. Vol. 36, 1241-1244. 
Guelph, Ontario, Canada. 
The Harvard Medical School Health Letter. February, 1979. Vol. IV, 
No. 4. 3. 
Reeder, Sharon R., Mastroianni, Luigi, Jr., Martin, Leonide L. and 
Fitzpatrick, Elise. Maternity Nursing. Thirteenth edition. J. B. Lip- 
pincott Company, Philadelphia. 362. 
295 
