Encyclopædia Britannica: Or, A Dictionary of Arts, Sciences, and Miscellaneous Literature, 4. köide,2. osaColin Macfarquhar, George Gleig A. Bell and C. Macfarquhar, 1797 |
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Page 459
... manner as tinctures made from that ore by aqua - regia . The undiffolved part yielded ftill , with frit , a blue glass . On treating manganese in the fame manner , aluminous crystals were obtained : the un- diffolved part of the ...
... manner as tinctures made from that ore by aqua - regia . The undiffolved part yielded ftill , with frit , a blue glass . On treating manganese in the fame manner , aluminous crystals were obtained : the un- diffolved part of the ...
Page 733
... manner in which the co- lours are imparted to the linen , affords much infight into the manner in which natural colours are produ- ced . It has already been obferved , that , when the co- louring matter of plants is extracted from them ...
... manner in which the co- lours are imparted to the linen , affords much infight into the manner in which natural colours are produ- ced . It has already been obferved , that , when the co- louring matter of plants is extracted from them ...
Page 739
... manner of mezzotinto ; but thefe , unless they are fkilfully managed , foon become smutty . Engravings in the manner of the crayon will perhaps answer better . ( H ) The principal difficulty in this fort of engraving arifes from a want ...
... manner of mezzotinto ; but thefe , unless they are fkilfully managed , foon become smutty . Engravings in the manner of the crayon will perhaps answer better . ( H ) The principal difficulty in this fort of engraving arifes from a want ...
Common terms and phrases
acetous acid alfo alum antimony aqua regia arfenic bifmuth boiling borax cafe calcined calx caufe cauftic Chineſe cobalt colour confiderable confiftence contained copper crucible cryftals decompofed dephlogifticated diffolved diftillation digeftion drachms eafily earth effervefcence evaporated expofed fal ammoniac faline falt fame faturated feems feparated fhould filk filver fimilar fire firft fixed air fixed alkali fmall fmell foluble folution fome fometimes foon fpecific gravity fpirit of wine ftate ftill ftrong fubftance fublimate fuch fufficient fufion fugar fulphur fuppofed furface glafs gold grains heat inflammable iron itſelf laft lefs likewife liquor mafs manganefe marine acid matter melted mercury metal mineral alkali mixed mixture moft moſt neceffary nitre nitrous acid obferved obtained oil of vitriol ounces phlogifton platina powder precipitate procefs pure purpoſe quantity quicklime reafon refiduum regulus retort ſmall tartar thefe theſe thofe thoſe tion uſed vapours veffel vitriolic acid volatile alkali yellow zinc