Abatán, river, location and navigable length
of. 67.
Abella, writer, volcanic nature of archipelago
noted by, 186; mineral springs described by, 193;
Mayón and surrounding cones described by,
222-226; volcanic disturbance of Pangasinan,
Benguet, and Nueva Vizcaya described by,
241-244.

Aborigines, firearms made by, 326; system of
writing employed by, 327, 328; religion of, 328;
dress of, 328, 329; commerce of, 329, 330; manners
and customs of, 329; language of, 448; tribe of
the Philippines believed to be, 454, 532.
Abra, province, earthquakes of, 245; tobacco cul-
tivation in, 358; Igorot population of, 513; Tin-
guianes in, 513; Ilocanos in, 513; description of
Inhabitants of, 513; average size of families in,
514 (note).

Abra, river, size of, 56; description of, 64.
Aburlin, tribe, 468.

Acapulco, commercial relations of, with Manila,
318, 350, 352, 355, 484.

Act of Congress, census of Philippine Islands
ordered by, 11, 587-595; rights guaranteed to
Filipinos by, 339; purchase of friar lands au-
thorized by, 346; sovereignty of United States
established by, 370.

Acuña, Governor, expulsion of Dutch from
Molucca Islands by, 316.

Aetas, tribe, 468.

Agno, river, length of, 56; source and direction of,
62, 64; population of valley of, 437.
Agótay, mountain, location and height of, 69.
Agriculture, undeveloped wealth of islands, 40;
causes of loss of interest in, 357; encourage-
ment of interest in, 355, 356, 432.
Agtá, tribe, 469.

Aguinaldo, Emilio, insurrection against Spain
led by, 324, 385, 386; treaty of peace arranged
with, 385, 386; capture of, 430.

Agusan, river, length of, 56; location of, 70; de-
scription of, 71; seismic center of, 204.
Ajuy, river, navigable length of, 70.
Alamit, tribe, 469.

Albay, province, winds of, 145; volcanic region
of, 193, 221, 227; population of, 439.
Albay, town, location of, 63.

Alburquerque, Father, volcanic eruptions de-
scribed by, 230.

Alcaldes mayores, qualifications for, 401.
Alexander VI, Pope, arbiter between Spain and
Portugal, 309.

Alfaro, Father Pedro de, 428.

Algué, Rev. Father José, S. J., director of Weather
Bureau, 30; contributions to census statistics
by, 36; article on climate of the Philippines by,
87-183; The Cyclones of the Far East by, 199; atlas
of the Philippines prepared by, 467.

Alphabet, national, 327.

Altitude, climate as affected by, 88.
Ambos Camarines, province, population of, 422,
431, 439; industries of, 439; description of na-
tives of, 494, 523, 524.

Amendments to act of Congress providing for
taking of Philippine Census, 593-595.
America, trade with, 427.

American school system, 41.

Amoy, Chinese port, opening of, to Spanish trade,
482.

Ancestors, worship of, by aborigines, 328.

Anda, Governor, friars' abuse of power, corrected
by, 344.

Anilao, river, navigable length of, 70.

26162-VOL 1-05-39

Arellano, Señor, reference to article written by,
389 (note); chief justice of the Philippines, 409;
convent and mission center founded by, 428.
Arévalo, town, founding of, 314.

Aritao, town, founding of, 449.

Army of the King, standing, 480.

Army, United States, military control of Philip-
pines by, 372, 387, 388; conquest of Moros by, 466.
Asphalt, occurrence of, 79.

Assistant directors of Philippine Census, 597.
Ata, tribe, 469.

Atmosphere, movements of, 128-183; movements
in Manila, given in table, 149.

Audiencia, definition, description, and jurisdic-
tion of, 391-400; reconstituting of, under name
of Supreme Court of the Philippine Islands, 408.
Auditor audiencia, office defined, 391 (note); du-
ties of, 392-394.

Augustin, General, governor of Philippines (1898),
386.

Augustinians, chronicles of, 244; early work of,
315; educational work of, 334; number of in
1898, 346 (note ); missions of, 449.
Autos acordados, defined, 397.
Ayangan, tribe, 469.

Babaylanes, Visayan priestesses, 441.
Babuyan Claro, island, volcanoes on, 246.
Babuyan, islands, volcanic cones in, 189; popula-
tion of, 421; character of inhabitants of, 448;
Morga's account of, 448.

Babylanes, tribe of, 460, 470.
Bacon. See Pocdol.

Bacoor, seat of provisional government organ-
ized by Aguinaldo, 387.

Bagabag, town, establishment of, 449.

Bagobo, tribe, where found, 462, 469; description
of, 561.

Baguió, pueblo, climatic elements in, 183.
Baguios, systematic study of, 29, 153; monthly
and yearly distribution of, 156; relative distance
from Manila, 157; climatic phenomena explain-
ed by nearness of, 157; frequency of, 157; in
Luzón and Panay, 158; months of occurrence of,
158; classification of, 158, 162, 175; description of,
158-160; distribution of, 161; trajectories of, 175;
explanation of, 175.

Bahu, mountain, location and height of, 73.
Bajaus, tribe, classification of, 561. See also Sámal
Laut, 471.

(609)

of, 228, 239, 247, 250.

Banao, tribe, 469.
Banaran, island, 464.

Banato, river, navigable length of, 70.
Bangon, tribe, 469.

Bank, Spanish, establishment of, 357; capital
stock of, 357.

Bantayán, town, 427.
Banuaon, tribe, 469.

Barangay, description of, 400.

Barrado, Father Eusebio, S. J., report on Calayo
or Volcán volcano by, 206.

Barrios, definition and description of, 57, 59.
Barrows, Dr. David P., Chief of Bureau of non-
Christian tribes, history of Christian or civilized
tribes by, 411-453; history of non-Christian
tribes by, 453-477; Chinese and other foreign
elements in Filipino races, discussed by, 477-491.
Basco, Governor, reoccupation of Batán Islands
by, 448.

Basilan, island, description of, 73; birds of, 74;
early pearl fisheries of, 416; military district
of, 562.

Basud, river, location and navigable length of, 65.
Bataan, province, lack of streams in, 64; popula-

tion of, 421; description of inhabitants of, 517.
Batanes, islands, character of inhabitants of, 448.
Bantanganes, tribe, 469.

Batangas, province, temperature of, 98; popula-

tion of, 433; coffee, production of, 446; Spanish
element in, 479; description of inhabitants of,
518-521.

Batak, tribe, 461, 469.

Bats, number of species, 73.

Bay of Bacoor, Spanish squadron destroyed in, by
Dewey, 386.

Bay of Batangas, population in vicinity of, 422.
Bayabas, Mt., height of, 63.

Baylies, Capt. James, enumeration of Moros in
Cottabato by, 25.

Bayombong, town, founding of, 449.

Beardsley, J. W., statistical information furnished
by, 60.

Becerra, colonial minister of Spain, important
legislation by, 375.

Becker, Dr. G. F., report of, 79; report of, on re-
lation of Philippines to adjacent islands, 185;
structural formation of Philippines summar-
ized by, 185; report on general distribution of
volcanic rocks by, 189; summary of the geology
of Philippine Islands by, 194, 195; summary of
the volcanic vents by, 215, 216; description of
Mayón volcano by, 222-226; summary of reports
on cruptions of Taal volcano by, 230-232; com-
ments on Zúñiga's theory of Taal volcanic re-
gion by, 234, 235; summary of report on volcanic
eruptions of Benguet center by, 241.
Benedictines, number of, in 1898, 346 (note).
Benguet, province, occurrence of coral limestones
in, 52; minerals found in, 84; climatic condi-
tions in, 183; volcanic vents and fissures of, 241;
records of earthquakes in, 244.

Bennett, Gov. L. E., supervisor of Nueva Vizcaya,
report of, 24; description of Ilongots by, 545-547.
Bertelli, microscismometer or tromometer in-
vented by, 198-200.

Bicol, river, location and navigable length of,
65; population of vicinity of, 419.
Bicols, tribe, characteristics of, 523, 524.
Bikol. See Bicol.

Bilans, tribe, general description of, 462, 469, 560,
561; Blumentritt on derivation of word, 462.
Biliran, island, location and area of, 67.

Bill of rights of Philippine Islands, 373.
Binahaan, river, location and navigable length
of, 67.

Binangonan, island, submarine seismic center in.
198.

Binintian, volcano, location and description of
228; Munti crater, 228; Malaqui crater, 229.
Binluay, extinct volcano, location of, 63,
Binondo, Chinese inhabitants of, 490.
Birds, of specified islands, 74.

Bishoprics of Cebú and Albay, population of, 43
440.

Biumaca, Mt., height of, 61.

Blumentritt, Prof. Ferdinand, historian, 461, #2,
467, 479.

Boat builders, 464.

Bohol, island, description of, 49; rivers of,67; de
scription of inhabitants of, 525.

Bojeador, cape, location and description of, 245.
Bombón, lake, description of, 230; Zúñiga's theory
regarding, 234; comments of Dr. G. J. Becker L
234, 235; population in vicinity of, 422,
Bonifacio, Andrés, revolutionary movement or
ganized by, 383, 384.

Books, symbols employed in writing, 327; mate
rials used, 327.

Borax, occurrence of, 86.

Borneo, island, Mohammedanism in, $28: early
explorations of, 413; description of, by Pigafetta,
416; Chinese element in, 478; commerce of
Philippines with, 479.

Bourns, Maj. Frank S., description of Filipines
by, 504, 505.

Bowring, Sir John, governor of Hongkong, Fir
pinos described by, 497.

Brahminism, influence of, 412.

Brock, Van den, account of submarine disturb
ances by, 218, 219.

Buencuchillo, Father, description of eruptions et
Taal volcano by, 230, 232, 233.
Bukidnon, tribe, 460, 470.

Bulacán, province, temperature of, 98: tobucen
production of, 358; fortification of. by Agui
naldo, 385; population of, 421; commerce of it.
Zúñiga's time, 435; Spanish element in, 479
Chinese wealth in, 489; description of inhati-
tants of, 516.

Bulúan, lake, description of, 72.

Bulusan, volcano, height and condition of, 63:
location of, 189; description of, 227.
Bunnayan, tribe, 469.

Buquit, tribe. 470.

Bureau of Ethnology, classification of tribes by,
467.

Bureaus of insular government, 371.

Burias, island, extent of, 66; relation to Luzón
221; population of, 422.

Bustamante, Governor, assassination of, $17, 345
Busuanga, town, home of Tagbanúa, 460.
Butpula, mountain, location and height of, 73.
Bútuan, population of, 422; trading mart of, 482.
Butulan, Mt., description of, 202.

Buzeta, historian, estimates of population br.
443; data compiled by, 443 (note); comments by.
on personal taxation of Chinese 490; Dicein-
ario by, 432.

Cababiyan, river, location and navigable length
of, 65.

Cabalian, volcanic cone, height of, 67.
Cabeza de Tablas, height of, 70.

Cabiangón, river, location and navigable length
of, 68.

Cabildo of Manila, definition of, 393, 394.
Cabuyan, island, population of, in 1591, 422.
Cagayán, province, volcanic disturbances in, 24%
tobacco production in, 358, 446; organization et
province of, 365; early population of, 421
rebellion of, in 1589, 424; increase in population
of, from 1735 to 1800, 439.

Cagayan, river, description of, 63, 72.
Cagayan, valley, volcanic disturbances in, 245.
Cagayan Sulu, islands, acquisition of, from Spain.
49; description of, by Pigafetta, 416; Mohan-
medanism in, 416.

Cagayanes, tribe, description of, 449, 468, 511, 522
Cagua, volcano, location of, 189.