INDEX. 



281 



PAGE 



Libbey, \Vm., work cited Ixxvi 



Line, old French, value of 48 



Linear measures xx-xxiv, 16-48 



Manometer, U-shaped. 



reduction to standard temperature. 



English xxxvii, 123-124 



Metric xxxviii, 125-126 



Marks, L. S., work cited Ixvii 



Marvin, C. F., work cited xxii, xxxiv, Ixi 



Maxwell, work cited Ixviii 



Mean time, conversion of solar into sidereal, 



xxvi, 58 



at apparent noon xxvi, 57 



Measures of angle xxiv-xxv, 50-55 



of length xxiv, 48 



of time xxiv-xxvii. 50-58 



Mercury, density of xxi-xxii 



Meridian, arcs of terrestrial Ixxv 



length of a degree Ixxv, 209 



Meteorological stations, list of . . . .Ixxxvi, 247-277 



Meter xxiii 



Meters, conversion into feet xxiii, 42-43 



per second into kilometers j)er hour, .xxviii, 68 



per second into miles per hour xxviii, 66 



Mile, different values for 48 



Miles, conversion into kilometers xxiii, 44-45 



per hour into feet per second xxviii, 65 



kilometers per hour xxviii, 64 



meters per second xxviii, 67 



Millimeters, conversion into inches xxi, 2,^-35 



(barometric), into millil)ars xxii, 38-39 



Minutee of time, into arc xxiv, 51 



into decimals of a day xxv, 56 



into decimals of an hour xxv, 57 



Moon, zenithal full, relative illumination in- 

 tensity of 226 



quarter, relative illumination intensity 

 of 226 



Nautical mile, equivalent in statute x.xiv, 48 



Newcomb, Simon, work cited xxvi 



Notation, Beaufort's weather Ixxxvi. 245 



Ounces, conversion into kilograms xxvii, 60 



kilograms into xxvii, 61 



Palm. Netherlands, value 48 



Parallel, length of a degree on Ixxv, 210 



Paschen. F., treatise cited 239 



Pounds, conversion into kilograms xxvii. 60 



imperial standard xxvii 



Pressure of saturated aqueous vapor, 

 over ice, 



Dynamic Ixi-lxvi, 173-174 



English Ixi-lxviii, 164 



Metric Ixi-lxviii, 160 



over water. 



Dynamic Ixi-Ixvi, 175 



English Ixi-lxviii, 165-168 



Metric Ixi-lxviii, 170-172 



decrease with altituile at mountain sta- 

 tions Ixxii-lxxiii, 202 



Pressure, standard units of, 



conversion of barometric readings into, 



xxi-xxii 

 (See also Barometer) 



Prototype kilogram .xxvii 



Psychrometric formula Ixviii-lxxii 



Psychrometric observations, 

 reduction of, 



English Ixx-lxxi, 180-190 



Metric Ixxi-lxxii, 194-199 



Cviuantity of rainfall corresponding to different 

 depths Ixxiv, 203 



Rainfall, conversion of depth of, into gallons 



and tons Ixxiv, 203 



Reaumur, conversion to Approximate Absolute, 



Centigrade and Fahrenheit xvi, 2-4 



Reduction, of barometer to, 



standard gravity xxxviii-xlii, 1 27-1 31 



standard temperature . . .xxxiii-xxxvii, 80-122 



Reduction, 



of psychrometric observations, 



English Ixviii-lxxi, 180-190 



Metric Ixviii-lxxii, 194-199 



of snowfall measurements Ixxiii, 202-203 



of U-shaped manometers to standard tem- 

 perature, 



English xxxvii, 123-124 



Metric xxxvii, 125-126 



Regnault, treatise cited xxxv, Ix, Ixi, Ixviii 



Relative humidity, 



Centigrade temperature Ixxii, 200-201 



Fahrenheit temperature Ixxi, 191-193 



Relative intensity of solar radiation 



Ixxviii-lxxix, 225-226 



Rode, Danish, value of 48 



Retch, A. L., work cited xxx 



Rowland, work cited Ixxxii 



Rubens and Aschkinass, treatise cited 239 



Ruthe. Prussian, value of 48 



Norwegian, value of 48 



Sagene, Russian, value of 48 



Scales, comparison of Approximate Absolute, 

 Centigrade, Fahrenheit, and Reaumur 



xvi-xvii, 2-4 

 Sea-level, 



reduction of temperature to, 



English xxxiii, 76 



Metric xxxni, 77 



.Seconds, conversion of decima'.s of a day into 



xxv, 56 



into arc xxiv, 51 



into decimals of a day xxv, 56 



into decimals of an hour xxv, 57 



reduction for, sidereal or solar time, .xxvi, 58 

 .Sidereal time, conversion to mean solar. . .xxvi, 58 



Simpson. Dr. G. C, work cited. ,xxix 



.Sky, relative illumination intensity, 



at sunset 226 



at end of civil twilight • -226 



Snowfall, weight corresponding to depth of 



water Ixxiii, 202-203 



Solar radiation 



absorption by atmospheric gases. . .Ixxxv, 240 



atmospheric transmission Ixxxii, 240 



relative intensity of, 



during vear at surface of the earth 



Ixxix, 226 

 for 24 hours at top of atmosphere 



l.xxviii, 225 

 scattering by atmospheric gases. .Ixxxv, 240 



spectral distribution Ixxxu, 240 



transmission percentages of, through moist 



air Ixxxii, 239 



Sclar time, mean, conversion into sidereal 



xxvi-xxvu, 58 



Specific gravity, of air •■•.•■^v;i 



of aqueous vapor Ixvi-lxviii 



Spectrum, water vapor lines in visible 



lxx.xii, 237-238 



absorption in infra-red Ixxxii, 238 



.Spheroid, Clarke's .■•■;• -xxiv 



Starlight, relative illumination intensity of... 226 

 State of weather, Beaufort notation for 



Ixxxvi, 245 

 Stations, list of meteorological ... .Ixxxvi, 247-277 

 Statute miles, conversion of, into nautical. xxiy, 48 



.Stefan, work cited Ixviu 



Sun, declination of Ix.xvii, 222 



relative illumination intensity of zenithal. .226 



Sunrise, time of, defined Ixxvii 



Sunset, time of. defined Ixxvii 



Sunshine, duration of .Ixxvi, 211-222 



Symbols, International Meteorological 



Ixxxv, 241-242 



Temperature, 



correction for, of thermometer stem. ..xix, 14 



reduction to sea level .xxxiii, 76, 77 



term in determination of heights by 



barometer xlvii-xlviii. 137-138, 146-147 



term in determination of density of air 



Ixxx-lxxxi, 228, 232-233 

 Thermodynamic thermometric scale, defined. .. .xv 



