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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 502

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 502
e the moveable lucid pointto the same distance of the two stars, so that thetwo lucid points may be exactly covered by, orcoincide with, the stars. A little practice inthis business soon makes it easy, especially toone who has already been used to look with botheyes open. What remains to be done is… … l,.ml,ii.ri,l-li^A„l l,j- T/fiii.isTtijy. ;3.aiMfsiJa.le6)6crJJiaS. J.Shiuy sculp. Jaae-l90.Tol.J4.Txy.l MI €]R© METERS. PlJTEJl.

Encyclopedias and dictionaries · Aeronautics

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