[4] Mr. Elmer D. Merrill.
[5] Mr. F. A. Thanisch.
[6] Igorrotes, Estudio Geográfico y Etnográfico sobre algunos Distritos del Norte de Luzon, by R. P. Fr. Angel Pérez (Manila), 1902.
[7] This typical Malayan bellows is also found in Siam, and is shown in a half tone from a photograph facing page 186 of Maxwell Somerville’s Siam on the Meinam from the Gulf to Aynthia (London, Sampson Low, Marston & Co., 1897).
There is also a crude woodcut of this bellows printed as fig. 2, Pl. XIV, in The Journal of the Anthropological Institute of Great Britain and Ireland, vol. XXII. With the illustration is the information that the bellows is found in Assam, Salwin, Sumatra, Java, Philippines, and Madagascar.
[8] It is believed to be either a Porcelain (Porcelana) or a Spider (Maioidea) crab.
[9] Analysis made for this study by Bureau of Government Laboratories, Manila, P.I., February 21, 1903.
[10] Charles A. Goessmann in Universal Cyclopædia, vol. X (1900), p. 274.