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A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)

Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 154

An illustration from A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams, 1829, leaf 154
ngs ; another hoop beingsoldered within these, forms a complete hollowring in which the oil is contained, as shown atL L fig. 4. this being filled at the tubes gh. Thewick i is situated in a kind of spout wliich pro-ceeds from the interior of the ring to its centre;and being very narrow, diminishes… … s BINOMIAL. 145 effect; and to increase tliis a reflector is added.M is a kind of conical chimney, which standsover the lamp and includes the light: the co-nical part ^/ of this is turned within, and wellpolished to reflect the light downwards. By thismeans the card is well illuminated, and if…

Encyclopedias and dictionaries · Aeronautics

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