| Show CAMPHOR this substance is the produce of the lauri cau phora or camphor laureal of and nd china cilina the tire roots aad wood of he the tree are chopped up and boiled with water in an iron vessel to which an earthen eart lien llen head containing straw 1 is adapted and the camphor campli or su blimes and arid condenses 4 upon the straw 4 in aliina the chopped branches are boiled in 4 water till the camphor begins to adhere to the I 1 the liquor is then bt rained and the cam earn I 1 chor concretes cone conc etes on standing it is afterwards mixed with a finely powdered earth and sublimed subi med from one oue metallic metal lc vessel into another two rinds finds of unrefined or crude camphor are known in commerce dutch or japan camphor and china camphor it is chiefly produced in the island of formosa and conveyed in julks to canton cantori when the tiie foreign markets are supplied crude camphor very much resembles moist sugar fugar before it is cleaned it is refined and converted c oil oll into the beautiful well known altido sold in the shops by sublimation the process is is carried oti ott in vessels called bombo loes they are made of thin flim glass g I 1 ass and end weigh about illy lb eadi cadi and measure about 12 inches across lach lacu 1 ell eli vessel has a short neck when filled with crude camphor they are im imbedded embedded bedded in a sand bath and heated to a temperature of from froin deg to deg which is is afterwards after alter wards raised to between lod tod end 00 deg about 2 per cent of quick lime ilme and arid 2 parts b boneblack one in fine powder are added to the melted comphor camphor and the heat beat raised so as to boil the liquid the vapor condenses in the upper tipper part of the vessel aa As the sublimation proceeds the height of the sand around the tha vessel is diminished diminish eq the process is completed in about 40 hours this operation requires considerable attention and experience peri perl ence euce ex |
