Weights. Ammonia 6? 12? 13? Olefiant Gas 6.4? 12.8? Carburetted Hydrogen or Pond Gas 7.4 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