The Edinburgh new dispensatory : ... Being an improvement upon the new dispensatory of Dr Lewis.

  • Lewis William, 1708-1781.
Date:
1789
Catalogue details

Licence: Public Domain Mark

Credit: The Edinburgh new dispensatory : ... Being an improvement upon the new dispensatory of Dr Lewis. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    Abstract from Dr WebsterV Syllabus of Lec-^ tures on Chem'ijiry and Materia Medic a. I N Chcmiftry we confider the difpofitlono of i\\t different kinds of mat- ter to unite, with their effeAs on union, as in dietgtics and materia me- dica we do their effeAs on the human body. _ , . , That power by which different particles unite is called chemtcal uttrac- tion, or uKefience. r i • j p r Matter, has been commonly arranged into lix kinds, i. i>alts ; lyti falilie bodies. 2. Earths ; fyn. earthy bodies, ftones. 3. Injia?nmablei; fyn. combuttibles. 4 Metals; fyn metallic bodies. 5. Water; fyu- watery or aqueous bodies. 6. jtirt; fyn. gafes, gafeous or aerial bodies^ permanent vapours. The kinds of matter not comprehenfible in the above arrangement arc, 1. Heat; fyn. abfolute or elementary heat or fire, principle or matter of heat. 2. Light ; fyn. matter of light, luminous principle. 3. Elearical fluid. 4. Magnetical fluid. 5. Peculiar vegetable and animal matters: as gum ; colouring-matter; itarch, or amylaceous matter ; vegeto animal gluten, coagulable lymph, or fibre of the blood.. 1. Salts are fapid, foluble in water,'generally uninflammable. They are fimple and compound. The fimple are fo called, as being ingredients In the compound, and are acids and alkalies. . The compound falts are faline and middle, i. e. the earthy and metal- lic ; as the acidated alkalies, earths, and metals. The faline, fyn. neutral, acido-alkaline, fales falfi, confift of two or more fimple falts. The earthy, fyn. faline earths, confift of a fimple fait and an earth. The metallic confift of a fimple or faline fait and a metal. The falls coiifolidated with w'atcr in a regular form are fald to be cryftal- lifed. A fait is fald to be, i. Deliquefeent when it attrafts water from the air ; fyn. aquefeent. 2. Spontaneoufly calcinablc, when the water of its cryftals is attrafted by the air; fyn. efflorefeent, deaquefeent, 3. Sub- jeft to the w'atery fufion, when it is foluble by heat in its cryllallme wa- ter. 4. Decrepitating, when It crackles In the fire, owing to Its fmall quantity of water becoming fuddenly elaftic vapour ; fyn. fubaquated. 5. Deflagrating, when, from the pure air which it contains, it can fup- port and accelerate combuftion ; fyn. detonating, dcaerelceutas falts containing acid of nitre. 2. Earths, except lime, arc infipid ; difficultly foluble in water, diffir cultly fufible, becoming glafs, uninflammable, unmetalllfable, and not heavier than five times tlieir bulk of water. 3. Inflammadlss, when fet on fire, burn tillrefolved into falts, earths, water, or fon.e mixture of thefe. 4. Metals are opake, bright bodies, not lighter than fix times their bulk of water. The inflammables and metals are fuppofed to owe their diftingulfhing qualities to their containing a fubtil fluid called pbhgijion, fyn. principle of inflammability or metallifatlon, fiilphureous, oleous, fpirltuous, or in- ]i flaramabH