With respect to the size of the villages we suffer from a complete lack of any direct information. By comparison with the rancherias around Clear Lake and in Alexander Valley we could consider that the four large towns contained 200 persons apiece. The five highly probable villages are likely to have been larger than many others, and may have contained 100 each. To the eight reasonably sure, but by no means certain, places we may ascribe 50 persons each. The nine doubtful ones can certainly be covered by a total of 200. The aggregate, then, is 1,900. In default of further ethnographic help we must fall back on mission data. In the records of San Francisco, Solano, and San Rafael it is possible to find baptisms assigned to the following recognized villages: Coyome, Loknoma (Lah-ki-yo-me-po-goot), Aloquiomi (Al-lok-yo-me-po-goot), Oleyome, Tuleyome, and Lupuyome. These names are no doubt more or less generic in character in that the missionaries were using them to apply to the larger villages or even subtribes. We would not expect them to conform in detail to any of the lists supplied by modern ethnographers. The total baptism number may, however, be taken as covering the area as a whole. The Lake Miwok (together with the Clear Lake Pomo) and the Northern Wappo were the most remote people, north of the Bay, who were reached for conversion prior to the secularization of the missions. All activity in this area was confined to the period 1824-1834, and was carried on by necessity through well organized, semimilitary, semireligious expeditions. Owing to unavoidable obstacles it was possible to get physical possession of and bring back to the missions only a small proportion of the potential converts. The exact value of this proportion can never be known, and indeed it undoubtedly varied widely from place to place. A similar question arose in connection with a previous study of the population of the San Joaquin Valley. For the latter area the conditions were postulated that the site of native residence was several score miles from the nearest mission, that a formally organized expedition had to be undertaken, and that there was able and determined opposition to missionization on the part of the natives. Under such circumstances it was concluded on the basis of evidence available that a fair approximation to the proportion of natives actually baptized was 15 per cent of the existing population. In most respects the situation south and southeast of Clear Lake was very similar to that obtaining in the lower San Joaquin Valley and the delta region. Hence the indicated baptism factor may be employed here.