id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-15740	Shiflett, Lee	Altman, Rochelle. Absent Voices: The Story of Writing Systems in the West. New Castle, Del.: Oak Knoll, 2004, 364p. $59.95 (ISBN 1584561084). LC 2003-050627.	2005	2	.pdf	application/pdf	1244	51	54	It is, perhaps, to be lamented that among these disciplines, none has corrected what has become a grating point in any discussion of the history of writing: clay tablets were not “baked.” Clay tablets were vitrified by a process that is normally called firing, where the clay is subjected to temperatures high enough to change the crystalline structure of the clay body itself.	cache/crl-15740.pdf	txt/crl-15740.txt