EXPLANATORY NOTES. 9 



Fortsch. D. Phys. "Fortschritte der Physik." 



Gilb. Ann. " Gilbert's Annalen." 



Gm. H. Gmelin's "Handbook." Edition of the Cavendish Society, vol. 1, 

 article on Specific Heat. (Hermann's paper, frequently referred to under this 

 heading, was originally published, in Moscow ; the work containing it was not 

 accessible to the compiler.) 



J. "Jahresbericht fiir Chemie." 



P. A. " Poggendorf 's Annalen." 



Watt's Diet. " Watt's Dictionary." 



Wien Ak. "Sitzungsberichte der Akademie zu Wien." 



