the Periodic Law of the Chemical Elements. 

 Table III. 



107 





Specific 

 Heat calcu- 

 lated from 

 1 



Specific Heat 

 (experiment). 



Specific 

 Heat. 



Temp, of 

 determin- 

 ation *. 



Authority. 



m-\- *J v' 



Series II. m=0. 



Lithium 



1-000 



•709 I 



•578 

 •500 { 



•446 



•408 

 •377 



•941 

 •642 



•582 



•5 (?) 



C. 



64° 

 100 



257 



600 



978 

 985 



Eegnault. 

 Eeynolds. 

 Nilson and Pet- 



terson. 

 Weber. 



Beryllium 



Boron 



**« {Son!} 

 Nitrogen 





•467 

 •459 



[•36]t 

 = -25]t 

 = -26]t 



Oxygen 







Series III. m=2%. 

 Sodium 



•286 

 •255 



•236 j 



•222 

 •211 - 



•202 < 

 •194 



•293 



•250 

 •214 

 •225 

 •216 

 •240 

 •203 

 •189 

 •202 

 •212 

 •178 

 •188 

 •202 

 •209 

 •235 

 •180t 



-14 

 60 

 60 



50 

 300 

 232 

 20 

 25 

 75 

 67 



134 



Eegnault. 



Malik 



Naccari. 



Weber. 



Eegnault. 



Kopp. 



Person. 



Eegnault. 



Dulong and Petit. 



Eegnault. 



Neumann. 



Person. 



Aluminium 



Silicon 



Phosphorus (yellow) 



Sulphur (rhombic) . . . 

 Chlorine ,... 





Series IV. m=5. 



Potassium 



Calcium 



•164 

 •156 

 •148 



•143 - 



•138 

 •134 



•131 { 



•166 

 •170 

 145$ 

 •112 



•162 

 •124t 



-34 

 50 



50 



220 



1 55 



Eegnault. 

 Bunsen. 



Nilson and Pet- 

 terson. 



»> >> 



Eegnault. 



Scandium 



Titanium 





Chromium 



Manganese (two \ 

 samples) J 





•122t 



•122 



•133 



* These temperatures are the arithmetical mean of the extreme temperatures 

 between which the specific heats were determined. 



t Not determined directly, but by calculation from the experimental specific 



heats of the compounds. n. « 



t Calculated from Dulong and Petit's law. Sp. ht.=-r — r. 

 a r at. wt. 



