The London dispensatory, containing: I, the elements of pharmacy; II, the botanical description ... and medicinal properties, of the substances of the materia medica; III, the pharmaceutical preparations and compositions of the pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians / By Anthony Todd Thomson.

  • Anthony Todd Thomson
Date:
1836
Catalogue details

Licence: Public Domain Mark

Credit: The London dispensatory, containing: I, the elements of pharmacy; II, the botanical description ... and medicinal properties, of the substances of the materia medica; III, the pharmaceutical preparations and compositions of the pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians / By Anthony Todd Thomson. Source: Wellcome Collection.

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    e. Two solid bases. 28. Sulphuret of carbon. J: Triple or quadruple compound gases. 29. Acetic ether. 34, Nitrous ether. 30. Hydriodic ether. 35. Sulpho-cyanic ether. 31. Chloric ether. 36. Vapour of alcohol. 32. Sulphuric ether. 37. oil of turpen- 33. Muriatic ether. tine. _ All these gases are invisible, except chlorine and the prot- oxide of chlorine, which have a yellowish green colour; but when gases of very different specific gravity are mixed toge- ther, they become in a certain degree visible. With respect to the specific gravity of gases, there is a greater difference between them under the same pressure, and at an equal tem- perature than exists between liquid substances; a circum- stance which must depend either on a difference of the repulsive force, or of the weight of the atoms in different gases. A Table of the density and weight of 100 cubic inches of the gases at the temperature of 60°, and a barometrical pressure of 30°. -- | Weight of -- | Weight of Specific : Specific Sf Ais Air SeCeocereeereseeeeseoue 1:000 $0:°5 Cyanogen Seeetesseseees 1°804 55°028 EE 1111 | 33°888||Olefiant Gas .......+.|0°974 | 29°720 FAVOTOZEN 550009 e cece. 0:0694| 2°117|/Carbureted Hydrogen(0‘555 | 16°99 Azote 23.000: ie chat oye as 0:9722| 29°652|Hydroguret of SOONG’ =. cascccess éea0e/2°D00 | 76°250 Pane 4 ey Sulphur vapour ......|1°111 | 33°888)|Bihydroguret of . : Vapour of Iodine..,..|8°678 |264°679] Phosphorus...... Dey Pr os Hydriodic Acid....... 4°375 |133°434||Fluoboric Acid ....... 2°3709| 72°312 Protoxide of Chlorine}2:440 | 74:420)\Chlorocyanic Acid 2-152 | 65+636 Protoxide of Nitrogen|1°5278| 46°598)| vapour..... Jor be C Binoxide of Nitrogen|1-0416| 31-769\|Hydrocyanic Acid f 5 Muriatic Acid......... £284.14 295162) | vapowiyvstas xt come ithe aie Sulphureted hydrogen|1+180 | 35:°890/Chlorocarbonie Acid |3°472 | 105-896 Steam i...5.00% eats neds 0°625 | 19°062)|Acetic Ether ....-.... 0°817 Ammonia ..... scone isn 0°590 | 18000) Hydriodic Ether......|5°475 | 166987 Carbonic Oxide .......{0°9722| 29°652||Chloric Ether......... 3°474 |105°957 Carbonic Acid......... 1°527 | 46°373)Sulphuricethervapour|2°586 | 78:°873 Sulphurous Acid....../2:222 | 67°771||Muriatic Ether ......./2°219 | 67°679 Sulphuric Acid ....... 2.777 aac Alcohol vapour ...... 1°6133| 49-206 “oes a of el 2:6447| 80°663 Oil of line’ ahaa 5-013 1159-896 ON Vapour .....2 || VAPOUY .....eeeeees Water is a constituent of almost every gaseous body; and the quantity of it contained in each depends upon the bulk, not the density, of the gas. It also appears probable, that the weight of it contained in 100 inches of all gases under the same pressure, and at the same temperature, is very nearly the same. It can be separated, in a great degree, by sulphuric acid, very dry alkalies, lime, and other matters which have a
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