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|
ross : 31 phrases in 13 subjects |
| Analytical chemistry | 1 |
| Automobiles | 2 |
| Biology | 1 |
| Fish farming pisciculture | 1 |
| Gear train | 2 |
| General | 7 |
| Geography | 1 |
| Mammals | 2 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 2 |
| Optics branch of physics | 5 |
| Ornithology | 4 |
| Zoology | 2 |