C 524 ) 
IV. faft of a Letter from Mr Gray, concerning 
an unufual Parhelion and Halo. 
V. Part of a Journall^ept from Scotland to New 
Caledonia in Daricn, with a fhort account of 
■ that Country. Communicated by Dr Wallace, 
f. R. S. 
VI. An AbftraH of a Book., viz. An Ac* 
count of the Iflands of Orkney. By James 
Wallace, M. D. ana Fellow of the Roy- 
al Society. To which is added, an Ejfay con' 
cerning the Thule of the Ancients, 80. JLdn- 
don. ;t 
I, The 
