Meyer, who makes no mention of Negritos in Sorsogon or Albay, deems their existence in the Camarines sufficiently well authenticated, according to Blumentritt, who places Negrito half-breeds in the neighborhood of Lagonoy and around Mount Isarog. Information received by The Ethnological Survey places them in the mountains near Baao, Bulic, Iriga, Lagonoy, San Jose, Gao, and Tigaon, as well as scattered over the Cordillera de Isarog around Sagnay. All of these places are in the extreme southeastern part of the province contiguous to that part of Albay inhabited by Negritos. In neither province is the type pure. In the northern part of the province a few Negritos, called "Dumagat," are reported near Sipocot and Ragay. The towns of San Vicente, Labo, Paracale, Mambulao, and Capalonga along the north coast also have Negritos, generally called "Aeta." These are probably of purer blood than those around Mount Isarog. More than a hundred families of "Dumagat" are reported on the Islands of Caringo, Caluat, and Jomalic. Farther to the north the Island of Alabat was first stated by Blumentritt to be inhabited by Dumagat, and in his map of 1882 he places them here but omits them in the map of 1890. Meyer deems their occurrence there to be beyond all doubt, as per Steen Bille's reports (Reise der Galathea, German ed., 1852). Reports of The Ethnological Survey place Aeta, Baluga, and Dumagat on Alabat--the former running wild in the mountains, the latter living in the barrios of Camagon and Silangan, respectively. On the mainland of the Province of Tayabas the Negritos are generally known as Aeta and may be regarded as being to a large degree of pure blood. They are scattered pretty well over the northern part of the province, but do not, so far as is known, extend down into the peninsula below Pitogo and Macalelon. Only at Mauban are they known as Baluga, which name seems to indicate a mixed breed. The Island of Polillo and the districts of Infanta and Principe, now part of the Province of Tayabas, have large numbers of Negritos probably more nearly approaching a pure physical type than those south of them. The Negritos of Binangonan and Baler have received attention in short papers from Blumentritt, but it yet remains for someone to make a study of them on the spot. Meyer noted in 1872 that Negritos frequently came from the mountains to Santa Cruz, Laguna Province. These probably came from across the Tayabas line, as none are reported in Laguna except from Santa Maria, in the extreme northern part. Even these are probably very near the boundary line into Rizal Province; perhaps they are over the line. Tanay, Rizal Province, on the shore of Laguna de Bay, reports some 300 Negritos as living in the mountains north of that town. From descriptions given by natives of Tanay they do not appear to be pure types. There is also a small group near Montalban, in Rizal Province, not more than 20 miles from Manila.