id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
hindsight-3579	Editors, Hindsight	Vol 14, No 4 (1983)	1983	22	.pdf	application/pdf	8773	376	58	Plastic spectacle lenses: Only twice has this newsletter made historical reference to plastic spectacle lenses (Vol. 8, No. 3, July 1977, p. 44 and No. 4, October 1977, p. 72). Having then lost all of its farmland, the Tajima area became increasingly one of people specializing in the manufacture of eyeglass lenses.	cache/hindsight-3579.pdf	txt/hindsight-3579.txt