| Subject |
|---|
| 1796 [1] |
| 1808 [1] |
| 1809 [4] |
| 1810 [6] |
| 1811 [6] |
| 1813 [1] |
| Acids [1] |
| Addition [1] |
| Air [1] |
| Alkali [1] |
| Apparatus [1] |
| April [10] |
| Arithmetic [1] |
| Astronomy [3] |
| August [6] |
| Barometer [1] |
| Benjamin Franklin [1] |
| Calculation [1] |
| Catalogue of books [1] |
| Chemicals [1] |