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Fcb. 28, 1010. uniformly hot so that it will not crnck. Tlicso flasks crack whon tho lcnst blast of air striltcs thom, owing t o tho high boiling oints of tho oils, but thoy taro raroly brokon whon using ti% iron covcr mndo of two doop snnd baths. --- Tho appnrntus is n niodificntion of tlint used b Dr. E. Grnefc for dctcnnininp tlic volntilc sulpl~ur in eon1 It consists of R Inrgo bottlc holding nbout 8 litrcs, fitted with a rubber stopper licld in plneo by n 1lnt brass springdoi:10.1002/jctb.5000290408 fatcat:olwvk3y5y5bdfjk6briwshwz5q