The British Encyclopedia, Or Dictionary of Arts and Sciences: Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge : Illustrated with Upwards of 150 Elegant Engravings. N - R. 5Longman, 1809 - 680 pages |
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Page 11
... tube , about a line in diameter , over mercury , and a series of electric shocks be passed through them for some hours , they will form nitric acid ; or , if a solution of potash be present with them , nitrate of potash will be obtained ...
... tube , about a line in diameter , over mercury , and a series of electric shocks be passed through them for some hours , they will form nitric acid ; or , if a solution of potash be present with them , nitrate of potash will be obtained ...
Page 16
... tube which is next the object . To prove the goodness and regularity of an object - glass , on a paper , describe two concentric circles , the one having its diame ter the same with the breadth of the object- glass , and the other half ...
... tube which is next the object . To prove the goodness and regularity of an object - glass , on a paper , describe two concentric circles , the one having its diame ter the same with the breadth of the object- glass , and the other half ...
Page 17
... tube of a telescope , it may be proved whether they be well centered by fixing the tube and observing , while the cell is unscrewed , whether the cross - hairs keep fixed upon the same lines of an object seen through the telescope ...
... tube of a telescope , it may be proved whether they be well centered by fixing the tube and observing , while the cell is unscrewed , whether the cross - hairs keep fixed upon the same lines of an object seen through the telescope ...
Page 18
... tube , through which the stars are seen at mid - day . Tycho Brahe's Observatory was in the little island Ween , or the Scarlet Island , between the coasts of Schonen and Zealand , in the Baltic Sea . This observatory was not well ...
... tube , through which the stars are seen at mid - day . Tycho Brahe's Observatory was in the little island Ween , or the Scarlet Island , between the coasts of Schonen and Zealand , in the Baltic Sea . This observatory was not well ...
Page 21
... tubes . Each of these sockets has a square base , and is fixed to the cube by four screws . These sockets are cut down in the sides about eight inches , to admit more easily the tube of the telescope ; but when the tube is inserted , it ...
... tubes . Each of these sockets has a square base , and is fixed to the cube by four screws . These sockets are cut down in the sides about eight inches , to admit more easily the tube of the telescope ; but when the tube is inserted , it ...
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Common terms and phrases
acid action ammonia angle angle of incidence animal appear axis benevolence body botany called calyx centre chyle circle class and order colour common compound connected consequently consists convex convex lens corolla degree distance distilled drupe Dubl earth ecliptic Edin effect employed equal Essential character feelings feet fixed flowers fluid fossil genus glass heat Hence ideas inches instrument iron ject Jussieu kind length less light Lond manner matter means ment metal mind Monogynia class motion mucilage muriatic muriatic acid Natural order nitre nitric acid object observed organs oxide oxygen parabola parallel pass perpendicular person piece plane plants Plate pleasures potash pound principle produced proportion quantity racter rays receiver refraction seeds sensation sensible side solution sometimes species specific gravity stances substances sulphur supposed surface term tincture tion Triandria tube vegetable vessels volatile oils weight