| lbs. | lbs. | |||
| Cast iron | 450 | Water | 62·5 | |
| Wrought iron | 486 | Air | 0·075 | |
| Steel | 489 | Steam | 0·036 | |
| Pine wood | 29·5 | |||
Weight of Rod Iron One Foot in Length of the following Dimensions:
| Square Iron. | Round Iron. | Flat Iron. | |||
|---|---|---|---|---|---|
| Inch. | Pounds. | Inch. | Pounds. | Inch. | Pounds. |
| ¼ | 0·2 | ¼ | 0·14 | ¼ × 1 | 0·8 |
| ⅜ | 0·5 | ⅜ | 0·4 | ⅜ × 1 | 1·3 |
| ½ | 0·8 | ½ | 0·7 | ½ × 1 | 1·7 |
| ⅝ | 1·3 | ⅝ | 1 | ⅝ × 1 | 2·1 |
| ¾ | 1·9 | ¾ | 1·5 | ¾ × 1 | 2·5 |
| ⅞ | 2·6 | ⅞ | 2 | ¼ × 2 | 1·7 |
| 1 | 3·4 | 1 | 2·7 | ⅜ × 2 | 2·5 |
| 1⅛ | 4·3 | 1⅛ | 3·4 | ½ × 2 | 3·4 |
| 1¼ | 5·3 | 1¼ | 4·2 | ⅝ × 2 | 4·2 |
| 1⅜ | 6·4 | 1⅜ | 5 | ¾ × 2 | 5·1 |
| 1½ | 7·6 | 1½ | 6 | ¼ × 3 | 2·5 |
| 1⅝ | 8·9 | 1⅝ | 7 | ⅜ × 3 | 3·8 |
| 1¾ | 10·4 | 1¾ | 8·1 | ½ × 3 | 5·1 |
| 1⅞ | 11·9 | 1⅞ | 9·3 | ⅝ × 3 | 6·3 |
| 2 | 13·5 | 2 | 10·6 | ¾ × 3 | 7·6 |
| 2¼ | 17·1 | 2½ | 13·5 | ¼ × 4 | 3·4 |
| 2½ | 21·1 | 2½ | 16·7 | ⅜ × 4 | 5·1 |
| 2¾ | 25·6 | 2¾ | 20·1 | ½ × 4 | 6·8 |
| 3 | 30·4 | 3 | 23·9 | ⅝ × 4 | 8·4 |
| 3½ | 41·4 | 3½ | 32·5 | ¾ × 4 | 10·1 |
| 4 | 54·1 | 4 | 42·5 | ¼ × 5 | 4·2 |
| 5 | 84·5 | 5 | 66·8 | ⅜ × 5 | 6·3 |
| 6 | 121·7 | 6 | 95·6 | ½ × 5 | 8·4 |
| 7 | 165·6 | 7 | 130 | ⅝ × 5 | 10·6 |
| 8 | 216·3 | 8 | 169·9 | ¾ × 5 | 12·7 |
Relative Heat-conducting Power of different Bodies.
| Gold | 1000 | Fire brick | 11 |
| Platinum | 981 | Fire clay | 11.4 |
| Silver | 973 | With Water as a Standard. | |
| Copper | 898 | Water | 10 |
| Iron | 574 | Pine | 39 |
| Zinc | 363 | Lime | 39 |
| Tin | 304 | Oak | 33 |
| Lead | 180 | Ash | 31 |
| Marble | 24 | Apple | 28 |
| Porcelain | 12·2 | Ebony | 22 |
Relative Conducting Power of different Substances compared with each other.
| Hare’s fur | 1·315 | Cotton | 1·046 |
| Eider down | 1·305 | Lint | 1·032 |
| Beaver’s fur | 1·296 | Charcoal | ·937 |
| Raw silk | 1·284 | Ashes (wood) | ·927 |
| Wool | 1·118 | Sewing silk | ·917 |
| Lamp black | 1·117 | Air | ·576 |
Relative Conducting Power of Fluids.
| Mercury | 1·000 | Proof spirit | ·312 |
| Water | ·357 | Alcohol (pure) | ·232 |