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