Subject ASC00001ww

The Intellectual observer.
v.11 (1867), Page 453 (1867)
Harvard University, MCZ, Ernst Mayr Library
BHL Page 39544393

Keywords

Dr. Sprengel Mercurial Exhauster vacuum velocity gases Torriceliian Vacuum diagram scientific apparatus Dr. Sprengel's Mercurial Exhauster experiment Sprengel Mercurial Exhauster Torricellian mercury caoutchouc gas velocity velocity of penetration of rubber by gases chemistry mercurial exhauster torricallian vacuum oxygen nitrogen Graham Torricellian vacuum Mr.Graham laboratory Torricelian vaccuum sprengel's mercurial exhauster diffusion of gases apparatus gas permeability rubber

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