Bulletin . o County. cooled from a retort is very much less in proportion to the tonnage ofore treated, as compared with the large furnaces. Large Chamber Condensers. When we come to condensers for the larger, continuous-feed furnaces(the Scott will be taken as typical, as there are more of them in use,and the condensing problem is practically the same for all the largetypes, both coarse-ore and fine), the situation become more we have to deal with not simply the vai)ors driven out from the QUICKSILVER RESOURCES. 259 ore mass, but mixed with them are the products of fuel combusti
Bulletin . o County. cooled from a retort is very much less in proportion to the tonnage ofore treated, as compared with the large furnaces. Large Chamber Condensers. When we come to condensers for the larger, continuous-feed furnaces(the Scott will be taken as typical, as there are more of them in use,and the condensing problem is practically the same for all the largetypes, both coarse-ore and fine), the situation become more we have to deal with not simply the vai)ors driven out from the QUICKSILVER RESOURCES. 259 ore mass, but mixed with them are the products of fuel questions of relative sizes, volumes and numbers of condensingchambers, materials for their construction, gas velocities, and temper-atures, become essential. So far, they have been almost entirelyworked out on the guess and try-on .system. Previous to the investi-gations now under way by the United States Bureau of Mines, the onlyattempt at scientific research in California in this direction was the. s ?,»..: ITU
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