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as I faw them to the eaft of the Giants-caufeway, 
and in the ifle of Mull ; except that thefe are di-- 
vided by fuch a fparry fubftance into a great num- 
ber of fmall figures, which feem to go down through 
them. There are fpots and veins of a whitifh done 
in the pillars. There is no fign of any thing of this 
kind in any of the rocks near, that I could obferve, 
or hear of. 
XVIII. An Account of a remarkable Meteor 
feen at Oxford. In a Letter to the Rev. 
Thomas Birch, D. D . Secretary to the 
Royal Society , from the Rev. John Swinton, 
B. D. of Chrift-Church, Oxon. F. R. S. 
Reverend Sir, 
Read Feb. 26, T"\ E I N G on the Parks, or public 
fj univerfity-walk here, on Sunday, 
Sept. 21, 1760, from 6 h 40' to 7 11 25' P. M. fuch 
a meteor exhibited itfelf to my view as I had never 
feen before. [Vide lab. III.] A dark cloud, like a 
pillar or column of thick black fmoke, and perpen- 
dicular to the horizon, appeared in the N. W. push- 
ing gradually forward towards the zenith, and at lad 
extending itfelf almoit to the oppofite part of the 
heavens. It was at firft feveral degrees broad, but 
grew broader and broader, as it approached the ze- 
nith j through which it paffed, and nearly bifledled 
the hemifphere, in a wonderful manner. At 7 h this 
furprizing arch, falling little fliort of a femicirole, 
O 2 that 
