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Part II. Vol. LI. 
XL. A Letter to the Honourable J. Th. Klein, 
Secretary to the City of Dantzick, from 
Mr. Peter Collinfon, F. R. S. concerning the 
Migration of Swallows. p. 45-9. 
XLI. Obfervations on the Comet feen in January 
1760; by jaincs Short, M. A. F. R. S. In a 
Letter to the Rev. Tho. Birch, H.H. Secretary 
to the Royal Society. p. 4 6y. 
XLII. Obfervations on the fame Comet 3 by the Rev. 
John Michcll, M. A. Fellow of Queen’s Col- 
lege in Cambridge. In a Letter to Mr. James 
Short, F. R. S. p. 466. 
XL1II. An Account of the fame Comet 3 by Nicholas 
Muncklcy, 0/LincohTs-Inn, Efq ; p. 467. 
XL1V. An Account of the faid Comet j by Mr. 
Mark Day. p. 469, 
XLV. Gf the vitriolic Waters 0/* Amlwch, in the 
IJle of Anglefeyj with occaf^nal Remarks on the 
Hartfell Spaw, defer ibed in the firft Volume of 
the Edinburgh Effays and Obfervations phyfical 
and literary , and in the \.<yth Volume of the SPhi- 
lofophical Tranf actions , and their Comparifon 
with other Waters of the fame Clafs. By John 
Rutty, M. CD. p. 470. 
XLV I. An Account of that Fart of America, which 
is near eft to the Land of Kamtchatk&j extracted 
X. from 
