The CONTENTS. 
IV. An Account , by Mr. John Eames, F. % S. 
of a Book entitled, Traite Physique et 
Historique De L’Aurore Boreale, 
Par Mr. De Mairan. Suite des Me- 
moires de l’Academie Royale des Sciences, 
Annee MDCCXXXi : Or, a Bhilojophical and 
Hifiorical Treati/e concerning the Aurora Bo- 
realis, By Mr. De Mairan 5 being a Sup- 
plement to the Memoir es of the Academy of 
Sciences for the Tear 1731. 
V. A Letter from Monf. Du Fay, F. S. and 
of the (Royal Academy of Sciences at Paris, to 
his Grace CHARLES Duke of Richmond 
and Lenox, concerning Electricity. Tran fa- 
ted from the French by T. S. M. T>. 
I. A 
LONDON: 
Printed for W. iNNYsand R.Manby, Printers 
to the Royal Society, at the Weft-End of St. Raul's. 
MDCCXXXIV^ 
