In the letter to the Governor covering his report, dated July 19 at Mission San José (Bancroft Trans., Prov. St. Pap., XV: 319-320) Amador says, regarding the Cuchillones [Juchillones] "... it is certain that there are many rancherias and very big ones; and this is the reason why they assemble to hold their councils and eat many seeds." This statement would favor a fairly large population. Furthermore, in replying to Amador on July 21, Governor Borica (Bancroft Trans., Prov. Rec., V: 118) notes that the expedition brought back 83 Christians and 9 Gentiles. This fact shows that the two tribal groups, Sacalanes and Juchillones, had already been able to absorb the losses occasioned by the missionization of 40 persons per tribe--plus the conversion of probably many others who were not fugitives or at least were not captured by Amador, plus the attrition due to disease and disruption of food supplies--and yet were in a position to maintain a total of 6 rancherias, each of moderate to large size. The preconquest population per group must have reached at least 300 and very likely was much greater. After Amador's return in late July a full-scale investigation was ordered. A great many Indians were interrogated in an effort to discover the cause, not only of the bitter hostility of the East Bay villages, but also of the incorrigible fugitivism which plagued the local missions. Two sets of testimony are on record (Archivo General de la Nación, Ramo Californias, Vol. 65, no. 3, MS p. 101, and no. 5, MS p. 109, dated respectively August 9 and September 16, 1797) which are of interest to the student of Indian psychology but of no particular ethnographic significance. Meanwhile, more small expeditions were sent out. The records of the pueblo of San José (Bancroft Trans., Dep. St. Pap., San José, I: 81-82) show that on July 2 an expedition was ordered to capture and punish Gentiles who had killed two mares. Later reports indicated that this objective had been accomplished. Subsequently, in a letter to Governor Borica dated at San José on September 3, Sergeant Amador described another expedition (Bancroft Trans., Prov. St. Pap., XV: 317-318). He says that "he set out at 8:00 p.m. on August 26 in search of the rancheria Pijugma. First they went to that of Juquili and at dawn fell upon the first rancheria [presumably Pijugma] where they did not find the chieftain they sought." However, they afterwards caught this chief, with three others, all of whom they took to the mission. Amador says the rancherias "will be about 10 leagues from the mission and are opposite the beach." The latter statement, together with the fact that the distance was covered in one night's travel on horseback, suggests the area of the Livermore Valley. The Sacalanes and Cuchillones appear again in a letter from Governor Borica to the Viceroy, dated at Monterey, March 14, 1799 (Bancroft Trans., Prov. Rec., VI: 443-444). The transcript reads: