Notices of the proceedings at the meetings of the members of the Royal Institution of Great Britain with abstracts of the discourses . t elevation by the respective lengths of line in the colour of theindividual constituents. The results of Hinrichs calculations whichinvolve no consideration of the effects of temperature, are representedin Diagram II., and those of Ferrel, who assumes a temperaturegradient of 4° per kilometre, throughout the upper air, in Diagram higher the assumed temperature gradient the lower the elevationat which the nitrogen and oxygen are eliminated and the true
Notices of the proceedings at the meetings of the members of the Royal Institution of Great Britain with abstracts of the discourses . t elevation by the respective lengths of line in the colour of theindividual constituents. The results of Hinrichs calculations whichinvolve no consideration of the effects of temperature, are representedin Diagram II., and those of Ferrel, who assumes a temperaturegradient of 4° per kilometre, throughout the upper air, in Diagram higher the assumed temperature gradient the lower the elevationat which the nitrogen and oxygen are eliminated and the true hydro-gen atmosphere begins. The elevations marked A, B, C and D in thediagram refer to the respective gradients of 4°, 3°, 2° and 1° perkilometre, and mark the end of nitrogen or the beginning of the truehydrogen atmosphere. The position A corresponds to 60 kilometres PLATE TJ DISTRIBUTION OF THE ATMOSPHERIC FORMULA. 1 \ \ 1 T1 I - 2 0 10 20 30 40 50 60 70 80 90 100 VOLUME PER CENT. NITROGEN | | OXYGEN ARGON flM CARBONIC ACID SB HYDROGEN I I PLATE ILL DISTRIBUTION OF THE ATMOSPHERIC FORMULA. )0. VOLUME PER | 1 OXYGEN HHCARBONIC - ACID H HYDROGEN 1 i 1902.] on Problems of the Atmosphere. 227 aud a temperature of -220°; B to 67 kilometres and-181° C.; C to76 kilometres and -132°; and D to 87 kilometres and -67°. On any of these temperature gradient hypotheses it appears thatpractically above 56 miles the atmosphere would be substantiallycomposed of hydrogen. If helium and neon had been included inthe calculations they would have been found concentrated at highelevation between the regions occupied respectively by the hydrogenand the nitrogen in the diagrams. If the temperature is taken asconstant, Diagram II. shows that at an elevation of some 62 milesthe composition of a sample of the air, if it could be secured, wouldbe 95*1 per cent, of hydrogen, 4*6 per cent, of nitrogen, and 0*3per cent, of oxygen. The permanence of the co
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Keywords: ., bookauthorroyalins, bookcentury1800, bookdecade1850, bookyear1851
