Johnston] 



NAVAHO POPULATION 



39 



view of the necessity of stock limitation, this rise in population implies 

 a decline in per capita livestock holdings and hence a relative decline 

 in per capita income from these holdings. This means, in turn, that 



Table 5. 



-Selected economic characteristics, Navajo Reservation — 1936, 1940, 

 1950, and 1955 



1 Soil Conservation Service, 1936, tables 1, 3, 7, 14, 17, 18. 



2 Bureau of Indian Affairs, 1941 b, tables 1, 3, 7, 18, 19. 



3 The discrepancies in the reported area of the Navajo Reservation prior to 1950 arise from the fact that 

 noauthoritativesurveyof the area had been completed (Young,1955, pp. 90and92). The figures shown are 

 obtained by subtracting the area of the Hopi land management unit (reported as 780 square miles) from the 

 total Navajo-Hopi Reservation area reported. 



* Bureau of Indian Affairs, 1954 a, table 2. 



8 Estimated by using the reported 1950 population as a base and assuming an average annual increase of 

 2.25 percent. This rate is given by Young (1955, p. 142) as the most plausible rate of increase at the present 

 time. 



* For 1936, see footnote 1 above. For 1940, see footnote 2 above. 



' For 1936 and 1940, this is the sum of the previous two entries. For 1950 and 1955, the figures given are 

 estimates obtained by summing the following entries (see footnote 8, following) . 



8 The reported wages for 1950 is an estimate of total income from all off-reservation employment for the 

 year 1950-51 (Yoimg, 1955, p. 189; 1954, pp. 123 f.). Similar income figures for 1951 and 1952 come to 

 $13,681,000 and $14,095,000 respectively. Income from "other sources" reported for 1936 and 1940 is primarily 

 from the production of rugs and silverwork. For 1955, the income was estimated by a more arbitrary pro- 

 cedure. Gross income from livestock and agriculture is quoted as given in Young, 1955, p. 65. Income from 

 wages and from other sources is estimated by assuming that 75 percent of the total income in these categories 

 accrues to the reservation Navaho population. 



» Only the total Uvestock holdings are reported for 1950 (Young, 1955, p. 197). All these figures are in 

 "mature sheep units." These are computed according to the following ratios: One sheep or goat equals one 

 unit; one head of cattle equals four units; and one horse equals five units. These ratios correspond approx- 

 imately to the forage consumption of each class of stock. 



1" For 1936 and 1940, these figures are computed by dividing the Income reported for each class of stock 

 by the total holdings, in sheep units, reported for that class. The figures given for 1950 are a 10-year av- 

 erage for the decade 1941-50, as given in Young, 1954, p. 114. 



" Obtained by dividuig the total reported livestock income for the given year by the reservation popu- 

 lation in that year. 



'2 Obtauied by dividing the total gross income for the given year by the reservation population in that 

 year. 



