% m ± m m m ^ 



THERMOS AS A THERMOSTAT IN TEST-TUBE 



CULTURE. 



By 



Toji NiStttDA, Nogcd-mJii. 



mmmmh Thermos li 1892 ^^m^T^-Jl (Dewar) K>Ö^^fiS^e)«#^ 

 ^L-Cmm^t^nm- Dewar's flask l::^!j^0fö^?&ElJ:tiffl L/2 5 * OJt-CIl 



ÜiRlU^ßD?) t'- r^ (Pierce) Kit J; f» Respiration Calorimeter ^ L"CMffl^f>4l.. 



-f 'ymA<Dm±^iämLnf^mm^ ^ km^^ b h^^^nfz b. ^ii4-tai3]# 



U.m^^m^Z'^&^ Thermostat f^ffl ^ LtTS %®1ll^ S % CDfe 5 lrE*?)/2 ^ o 



