[ i8 S ] 
XXXIV. An Account of fever al fery Me- 
teors feen in North America : In a Let- 
ter to John Pringle, M. D. and F. R. S. 
from John Winthorp, Efq ; Hollhhan 
Profejfor of Mathematics and Philofophy 
at Cambridge, in New England. 
S I R, 
Read June 7,'r Am greatly indebted to you for the ho- 
iy64 ‘ X nour you have done me in fending me 
your curious account of the late fiery Meteor in 
Britain, which I received through the hands of my 
very worthy friend Dr. Franklin. I have perufed 
the account with great fatisfa&ion, in which, as it 
appears to me, you have determined the figure, mag- 
nitude, height, path, and velocity of the Meteor, 
with as much exadtnefs as the nature of the thing will 
admit of. The circumftances you mention, p. 259, 
260, will, I am afraid, always prevent the attain- 
ment of the precifion one could wifh for in thofe 
particulars, fo neceffary for laying a fure foundation 
to build a theory upon. The hypothefes hitherto 
advanced are liable to great difficulties, and the hints 
you have given in the conclufion towards another ap- 
pear intirely new, and free from feveral objections 
with which the others are embaraffed ; and I fhould 
be very glad to fee them thrown together into a 
juft fyftem. If any obfervations fhould occur to 
me, that might throw light on this difficult fubjeCt, 
I will do my felf the honour to communicate them 
V o l. LI Vk Bb to 
