SUBJECT
Botany
15
Earthquakes
7
Mayon
4
Philippines
4
Atlases
3
Histology
3
Arithmetic
2
Climate
2
Flowers
2
Magnetism, Terrestrial
2
Meteorology
2
Metric system
2
Mines and mineral resources
2
Plants
2
Science
2
Typhoons
2
Zoology
2
Aneroid barometer
1
Astronomy
1
Atmospheric pressure
1
Ballenas--Pacifico Nororiental
1
Bio-bibliography
1
Botany, Medical
1
Cinnamon
1
Clouds
1
Collection and preservation
1
Decimal system
1
Delfines--Pacifico Nororiental
1
Directories
1
Ethnology
1
Ferns
1
Filipino language
1
Fishes--Cuba
1
Foreign elements
1
Geology
1
History
1
Human physiology
1
Influence on Filipino
1
Logarithms
1
Malinao (Volcano)
1
Marine biology
1
Marine ecology
1
Marine fishes--Cuba
1
Marine pollution
1
Marsopas--Pacifico Nororiental
1
Mathematics
1
Meteorological stations
1
Mineralogy
1
Mollusks
1
Mount Makiling
1
more ...