id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_2m4vhtzp6ba35gqqy4v2ttmix4	J. Bartram	Extract of a Letter from Mr. John Bartram, of Philadelphia, to Benjamin Franklin, LL. D. F. R. S. Relating to a Remarkable Aurora Borealis	1761	1	.pdf	application/pdf	328	72	97	Extract of a letter from Mr. John Bartram, of Philadelphia, to Benjamin Franklin, LL. relating to a remarkable Aurora borealis Bartram, o f Philadelphia, to Benjamin remarkable Aurora Borealis-. Philadelphia, Nov. 12, 1757* Read Feb. 25, IT T E R E is a vifible Aurora borealis •$, 17̂ 2, J£"j [ at feven o'clock, it was about two hours high, to the northward pretty bright, Soon points reached near forty-five degrees elevation, which icon difappeared, and the light defcended,, by degrees* under the pole, and by ten o'clock was near extin&v it appeared this night with you* which may afilft in any, this fall, before. and clear* and the wind pretty drong. I believe this the colded evening we have had this fall* * confiderable one appeared here the Tame evening,, you law, it m ud have been very high, or very externfive* as the two places are 1000 leagues afunder.	./cache/work_2m4vhtzp6ba35gqqy4v2ttmix4.pdf	./txt/work_2m4vhtzp6ba35gqqy4v2ttmix4.txt