. The Bell System technical journal . tv^ Fig. 9—Same range of concentration as in Figure 8 with U-10 as test fungus. Thegrowth ratings from left to right are 4-4, 3-4, 1-3 and 1-2. economic importance in the decay of timber or which have beenencountered in the actual decay of telephone poles, being sure to includein any given test the fungi which past experience has shown to beresistant to the type of preservative under consideration. Four 204 BELL SYSTEM TECHNICAL JOURNAL organisms in duplicate are used in each test (Fig. 10). Lentinuslepideus, cited by Buller,^ Snell ^ and Humphrey ^ and is
. The Bell System technical journal . tv^ Fig. 9—Same range of concentration as in Figure 8 with U-10 as test fungus. Thegrowth ratings from left to right are 4-4, 3-4, 1-3 and 1-2. economic importance in the decay of timber or which have beenencountered in the actual decay of telephone poles, being sure to includein any given test the fungi which past experience has shown to beresistant to the type of preservative under consideration. Four 204 BELL SYSTEM TECHNICAL JOURNAL organisms in duplicate are used in each test (Fig. 10). Lentinuslepideus, cited by Buller,^ Snell ^ and Humphrey ^ and isolated severaltimes from posts in the Gulf port, Mississippi, test plot,^ as well asfrom poles in service, is used in all cases of organic preservatives, butis seldom used against metallic salts, to which it is extremely trabea, another species of great economic importance, Hubert,*and also isolated several times from rotted southern pine poles, issomewhat parallel in resistance to Lentinus lepideus, but produces
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
