SIMPLE OR COMPOUND?
| Weights. | |
| Fluoric Acid | 10? 15? |
| Magnesia | 17 |
| Alumine | 20 |
| Glucine | 23? 34? |
| Lime | 24 |
| Oxymuriatic Acid (chlorine) | 29, or 30 |
| Muriatic Acid | 30, or 31 |
| Gas | |
| Zircone | 45 |
| Silex | 45? |
| Yttria | 53? 36? 18? |
COMPOUND ELEMENTS.
| Weights. | |
| Ammonia | 6? 12? 13? |
| Olefiant Gas | 6.4? 12.8? |
| Carburetted Hydrogen | 7.4 |
| or Pond Gas | |
| Water | 8 |
| Phosphuretted Hydrogen | 10 |
| Nitrous Gas | 12, or 24? |
| Carbonic Oxide | 12.4 |
| Sulphuretted Hydrogen | 15 |
| Deutoxide of Hydrogen | 15 |
| Nitrous Oxide | 17 |
| Nitrous Acid | 19, or 38? |
| Carbonic Acid | 19.4 |
| Sulphurous Oxide | 21 |
| Phosphoric Acid | 23 |
| Sulphurous Acid | 28 |
| Protoxide of Arsenic | 28 |
| Soda | 28 |
| Hydrate of Lime | 32 |
| Protoxide of Iron | 32 |
| Protoxide of Manganese | 32 |
| Protoxide of Nickel | 33 |
| Sulphuric Acid | 35 |
| Sulphuret of Arsenic (native) | 35 |
| Hydrate of Soda | 36 |
| Oxide of Zinc | 36 |
| Carbonate of Magnesia | 36.4 |
| Protosulphuret of Iron | 39 |
| Deutoxide of Manganese | 39 |
| Oxide of Chromium | 39 |
| Muriate of Magnesia | 39 |
| Protosulphuret of Nickel | 40 |
| Protosulphuret of Lime | 41 |
| Carbonate of Lime | 43.4 |
| Protoxide of Cobalt | 44 |
| Strontites | 46 |
| Muriate of Lime | 46 |
| Chromic Acid | 46 |
| Protoxide of Antimony | 47 |
| Carbonate of Soda | 47.4 |
| Hydrate of Potash | 50 |
| Muriate of Soda | 50 |
| Sulphate of Magnesia | 52 |
| Sulphuret of Antimony | 54 |
| Sulphate of Alumine (simple) | 55 |
| Oxide of Palladium | 57 |
| Sulphate of Lime | 59 |
| Protoxide of Tin | 59 |
| Carbonate of Potash | 61.4 |
| Hydrosulphuret of Antimony | 62 |
| Nitrate of Magnesia | 62 |
| Sulphate of Soda | 63 |
| Protoxide of Copper | 63 |
| Muriate of Potash | 64 |
| Deutoxide of Tin | 66 |
| Protosulphuret of Tin | 66 |
| Oxide of Gold | 67 |
| Barytes | 68 |
| Muriate of Lime | 69 |
| Oxide of Bismuth | 69 |
| Deutoxide of Copper | 70 |
| Nitrate of Soda | 73 |
| Sulphuret of Gold | 74 |
| Protosulphuret of Bismuth | 76 |
| Sulphate of Potash | 77 |
| Oxide of Platina | 80? |
| Nitrate of Potash | 87 |
| Carbonate of Barytes | 87 |
| Muriate of Barytes | 90 |
| Oxide of Silver | 97 |
| Protoxide of Lead | 97 |
| Minium | 98 |
| Sulphate of Barytes | 103 |
| Deutoxide of Lead | 104 |
| Protosulphurets of Lead and Silver | 104 |
| Nitrate of Barytes | 113 |
| Protoxide of Mercury | 174? |
| Deutoxide of Mercury | 181? |
| Protosulphuret of Mercury | 181 |
| Alum | 277 |
ADDENDA.
Steel.—Since writing the article at [page 214], I have had an opportunity of analysing the crystalline steel, formed by Mr. Macintosh’s process of cementation by means of coal gas. I dissolved 21 grains of this steel in sulphuric acid, with only a very slight excess of acid. The whole was dissolved except about ⅒ of a grain of silvery-like particles. The gas obtained amounted to 29.6 cubic inches. It yielded no trace of carbonic acid. When fired with oxygen it yielded 3 per cent. upon the volume of hydrogen of carbonic acid; and this arose, as I ascertained, from the hydrogen containing 3 per cent of carburetted hydrogen gas: it contained no carbonic oxide. Supposing the carbone to have been combined with the iron, it would amount only to about ⅝ of a grain, to 100 grains of iron. Whether such a quantity can be deemed an essential or an accidental ingredient of steel, may be a subject of consideration.
By a mistake of the Printer, the following paragraphs were omitted after [page 308].
EXAMPLE.
According to the following values of the different specific gravities, (of the accuracy of some of which there may be doubts) and referring to my essay on oil gas (Manchester Memoirs, Vol. 4, new series, page 79,) we may take the oil gas, which, when the incombustible portion was abstracted would be nearly .812 sp. gravity, and
100 pure gas give 152 carb. acid and take 248 oxygen;