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 . ontal lines; at the endof which are written the numbers for the hours,from one to twelve, and between the horizontallines are diagonals that are divided into halves,quarters, &c. On the handle C, and close tothe glass, is fixed the style or gnomon II. Now,as the distance of the style from the flame of thelamp is only half an inch, if the distance of thef
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 . ontal lines; at the endof which are written the numbers for the hours,from one to twelve, and between the horizontallines are diagonals that are divided into halves,quarters, &c. On the handle C, and close tothe glass, is fixed the style or gnomon II. Now,as the distance of the style from the flame of thelamp is only half an inch, if the distance of theframe from the style is only six inches, then,while the float that contains the light descends,by the decrease of the oil, one inch, the shadowof the style on the frame will ascend twelveinches, that is, its whole length, and show by itsprogression the regular increase of the hours,with their several divisions. It is absolutely 686 CHRYSALIS. necessary, that tlie oil used in this lamp bealways of the same sort and quite pure, and thatthe wick also be constantly of the same size andsubstance, as it is on these circumstances, andthe uniform figure of the vessel, that the regularprogress of the shadow depends. See the an-nexed CHROSTASIMA, in natural history, a genusof pellucid gems, comprehending all those whichappear of one simple and permanent color in alllights ; such are the diamond, carbuncle, ruby,garnet, amethyst, sapphire, beryl, emerald, andthe topaz. See Diamond, Carbuncle, &c. CHRUDIM, a town and circle of Bohemia,which takes its name from the town of Chrudim,between Moravia and the circles of Konigingratz,Biczow, and Czaslau. It is woody and moun-tainous eastward, but open and fertile in the chief productions are corn, flax, and a finebreed of horses. In the towns and villages aresome manufactures in a thriving state. Popula-tion 245,060. Chrudim, the town, stands on the river Chru-dimka, and contains 700 houses. It is fiftymiles east of Prague. CHRY
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Keywords: ., bookcentury1800, bookdecade, booksubjectaeronautics, bookyear1829
