TABLES. 



143 



SPECIFIC HEATS OF SUBSTANCES WHICH CAN BE OBSERVED IN THE STUDY OF 

 EXPLOSIVES SOLIDS AND LIQUIDS. (Continued.) 



The specific heats of solid compounds can be approximately 

 calculated from the sum of those of their elements ; the latter 

 being taken, not with the real values which they possess in 

 the free state, but with the values calculated by Kopp from the 

 mean of the observed values for their compounds. He has thus 

 obtained the following empirical values referred to the equiva- 

 lent weights : 



6-4 for K, Li, Na, Rb, Tl, Ag, As, Bi, Sb, Br, I, Cl. 

 5-4 for P. 

 5-0 for F. 

 3-8 for Si (28). 



3-2 for Al, Au, Ba, Sr, Ca, Cd, Co, Cr, Cu, Fe, Hg, Ir, Mg, Mn, Ni, Os, Pb, 

 Pd, Pt, R, Sn, Ti, Mo, N, Zn, Se, Te. 

 2-7 for S (16), B (11). 

 2-3 for H. 

 2-0 for (8). 

 1-8 for C (12). 



