CONSTANTS OF NATURE. 



By Joun Le Conte, 

 Of the University of California. 



iVide. Paper on "Sound" in "Lond., Ediu., Dub., Phil., Mag." 4th Series, Vol. 27, 

 pp. 15, 16, 17, 18, 29 e« seg.— January, 1804.] 



ConstaBts. 



Logarithms. 



Weight of 1 litre of mercury at 

 Paris, 60 metres above sea, at 0° 

 C 



"Weight of 1 cubic foot (English) of 

 same 



"Weight of 1 cubic inch (English) of 



same 



Do 



"Weight of 1 litre of pure, dry air at 

 Paris, 60 metres above sea, at 0° 

 C, pressure =760 ""» of roorcurv, 

 atO°C '.. 



"Weight of same at sea-level 



"Weight of same at equator 



"Weight of sanio at latitude 45° — 



"Weight of same with 0.0004 vol- 

 umes of COj at Paris, height =60" 



Do., at Paris, height = 0™ 



Do., at equator, height =0™ 



Do., at latitiule 45°, heigh t=Om. . . 



"Weight of 1 cubic foot (Engli.sh) of 

 pure, dry air at Paris, height = 

 eC", at 0° C, pressure = 760 ">"■ of 

 mercury --. 



"Weight of 1 cubic foot of same 



"Weight of 1 cubic inch of same — 



"Weiglit of 1 cubic foot with CO2. .. 

 Do 



"Weight of 1 cubic inch with CO2. . . 



13595.93 grammes 



848.7196416 pounds avoirdupois 



0.4911572 pounds avoirdupois. . 

 3438.1004 grains 



1.2932227 grammes , 



1.2932',388 grammes 



1 .2893600 grammes 



1 .2927818 grammes 



1.2934963 grammes 



1.2935124 gi-ammea 



1.2890328 grammes 



1.2930553 gxammes 



0.0807288 pounds avoirdupois. . 



565.101792 grains 



0.3270265 grains 



0.0807459 pounds avoirdupois. . 



565.22137 gi'ains 



0.3270957 grains 



4.13340,89199 



2. 92876,42591 



-1.69122,05210 

 3.53631,85610 



0. 11167,33192 

 0. 11167,87259 

 0. 11037,41927 

 0. 11152.52294 



0. 11176,.51908 

 0.11177,05964 

 0. 11046,60703 

 0. 11161,70987 



-2.90702,86584 

 2. 75212,66984 



-1.51458,29603 



-2.90712,05300 

 2. 75221,8.5700 



— 1. 51467,48319 



1. 2893600 



1. 32 X li 



I X (1+0. 005307746 X sin* lat. \ 

 --^;p^^ ( l-"^) X (1 + 0. 005307746 X sinMat.) 



6-0. 378 X/ / 



"Weight of 1 litre of air=i+o7003CT xl ^ 760 ^ \ 



1. 2896328 I 

 "Weight of 1 litre of air + C()''~i^Q,o(tiK7xt^ ' 



[Weight in grammes : « = C° ; 6 = lieight of bar in """ of mere, at 0° C : /= tension of aq. vap. in >»" of 

 mere, ai 0= C: /;= height above sea-level: r = rad. of earth.] 



5^5«:-"r-^:t = 0oC:pr. = 0»76- 

 Dens, air ' 



Do 



Do 



Do 



Same + C02 



Do 



Do 



Do 



Pressure of atmosphere at t = 0° 

 C : bar = 0'".76 of mercury 



Do 



Do 



Do 



Do 



Height of homogeneous atmosphere 

 of air, at « =00 



Do 



At P.aris, height = 60" = 10,513.2163 .... 



At Paria, height = 0™ = 10,513.085 



At equator, height = 0™ = 10,544.712 



At latitude 45°, height = 0-" = 10,516.802 



At Paris, height =60™ =10,510.992 



At Paris, heiiiht = O"" = 10,510.861 



At equator, height = 0" = 10,542.481 



At latitude 45°, height = O" = 10,514.577 



On square centim. = 1033.29068 grammes 



On sijuare centim. = 1.03329068 kilogrammes . . 

 On square metre = 10332.9068 kUogiammes ... 

 On square inch = 14.6963 pounds avoirdupois . 

 On square foot =2116.268 pounds avoirdupois. 



= 7990. 044388 metres 



= 26214.52864 (English) feet 



427 



4. 02173, 



4. 02173, 

 4. 02303, 

 4. 02188, 

 4.02164, 

 4. 02163, 

 4. 02294, 

 4. 02179, 



.56007 



01940 

 47272 

 36905 

 37291 

 83235 

 28496 

 18212 



3. 01422,25122 

 0.01422,2.5122 

 4.01422.25122 

 1. 16720,82426 

 3. 325.57,07347 



3. 90254,91930 

 4.41854,20762 



