I. 



REMARKS ON 



THE FORCES OF INOKGANIC NATUKE. 



Br Dn. J. R. MAYER. 

 TRANSLATED BY J. C. FOSTER, B.A. 



n. 

 ON CELESTIAL DYNAMICS. 



BY DR. J. R. MAYER. 

 % TRANSLATED BY DR. H. DEBUS, F.E.S. 



m. 



REMARKS ON 



THE MECHANICAL EQUIVALENT OF HEAT, 



BY DR. J. R. MAYER. 

 TRANSLATED BY J. C. FOSTER, B.A. 



11* 



