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Show 173 and English. The Editor points out that during many meetings lately, it has been a point to make plans for the improvement of living conditions for Latin Americans. No one has made a point that with this improvement, so will the birth rate and population increase in greater proportions than observed at present. The Editor warns that efforts should be made to convince the population of the dangers of an increased population. Editorial. "Los Indios Olvidados," America Indigena XI No. 4 (October, 1951), pp. 279-280. Discussion of how certain human groups in America are dying out. A typical case, of the many, is that of the Lacandons who number today only less than 200. Cravioto, Rene 0. (Mexico). "Valor Nutritivo de los Alimentos Mexicanos," America Indigena, XI No. 4 (October, 1951), pp. 297-309. English Summary: Research on food composition plays an important role in the understanding of nutrition in Mexico. The National Institute of Nutrition of Mexico has on its files the analysis of about 750 Mexican foodstuffs. We present on this paper a discussion about the nutritive value of 25 of these items, the richest in proteins, fat, calcium, phosphorus, thiamine, riboflavin, niacin, vitamin C and carotene. Some edible plants and animals (Insects and Crustacea), which are eaten by small groups of population especially of low income, and which we consider as rare foods, are rich in certain nutrients. We suggest the convenience of studying their distribution and in some way to stimulate their generalization. Some of these are particularly rich in carotene, vitamin C, calcium, phosphorus and protein content. These studies must be rounded up with biological tests and research about the effect of cooking on every nutrient. Spitz, R. A. (United States). "Environment vs Race-Environment as an Etiological Factor in Psychiatric Disturbances in Infancy," America Indigena, XI No. 4 (October, 1951), 311-322. Summary in Spanish, article in English. An experimental approach to the problem of race differences. 1952 Leon, Luis A. (Ecuador). "Historia Y Extincion Del Cocaismo En El Ecuador. Sus Resultados," America Indigena, XII (January, 1952) pp. 7-32. English Summary: Coca chewing in the Andean zone of South America has been the concern of numerous scientists. |