In view of the paucity of the village data for all subtribes except the North Fork group it is proper to fall back on area-density comparisons. The territory actually inhabited by the Mono is vague, particularly on the eastern border approaching the high mountains. Nevertheless Merriam's villages furnish a fair guide in outline, since his findings, while very incomplete, can be regarded as a reasonably well distributed sample. Moreover, his descriptions of tribal boundaries and village locations appear to be very accurate. When we plot the latter on a large scale map, therefore, the outlines of the Western Mono area become sufficiently distinct. There are two possible variants of the method, one by computing stream distances and the other by measuring areas. Both must of course rest for their basis on the data for the North Fork subtribe. This in turn may entail some error, since the North Fork group may have been not only the most populous but also the densest. For the North Fork territory the distribution shown by Gifford on his map (1932, p. 18) is used plus the area of Bass Lake, since Merriam has found that there were once villages there. The southern and eastern boundary is taken as the San Joaquin River, because the North Fork Mono apparently did not cross to the left bank of the river. Several miles on Little Fine Gold Creek must also be included, according to Gifford's map. In this region there were approximately 60 miles of streams, including the San Joaquin River itself. With a population of 440 this means 7.33 persons per stream mile. The stream mileage for the San Joaquin system as a whole within the Mono boundaries amounted to 100 miles. Hence the population in the same ratio would be 733. The analogous values for the Kings River system are 150 miles and 1,100 persons and for the Kaweah drainage 75 miles and 550 persons. The total population would then be 2,383. If areas are calculated from the township lines on the map, that covered by the North Fork Mono is approximately 150 square miles and that of the Mono collectively is 1,090 square miles. Equating the North Fork population to the entire area gives for the Mono as a whole 3,195. We may now return to the consideration of the Fresno-San Joaquin region. For the lower courses of these rivers, mainly in Yokuts territory, three values were derived, 2,633 from general estimates, 2,600 from Ryer's vaccinations, and 3,430 from village lists. We may accept the average, 2,890. For the Mono of the upper San Joaquin the best estimate, as given above, is 733. The total is 3,623 or, rounded off to the nearest hundred, 3,600. FRESNO-SAN JOAQUIN ... 3,600 ____________________________ THE KINGS AND THE KAWEAH RIVERS