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XVI. ExtraBs of fhree Eetters from. John Long field, 
M. D. at Corke in Ireland, to the AJlronomer Royal , con - 
taining fome Agronomical Obfervations ; together with 
the Longitude of Corke, deduced from the faid Obferva- 
tions , by the Aflronomer Royal. 
•Read February ii, 1779. 
S I R. 
Corke, 
O&. 1, 1773, 
NCOURAGEDby Mr. walsh, with whom I have 
— J the pleafure of being acquainted, and who has fa- 
voured me with a letter to you ; and being confident of 
your inclination to promote Geography and Aftronomy ; 
I trouble you with a few obfervations, and requeft your 
advice and affiifance in the profecution of my favourite 
ftudy. 
Laft year I built a very folid and commodious, though 
fmall obfervatory, clofe to my houfe. The top of one of 
the hills which furround this city would have been a more 
eligible lituation; but as my profeffion confines me to 
the town I had no choice. To make up its deficiency in 
height, I have adapted the upper part of my houfe to the 
Y a 
fame 
