id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-11520	Kilgour, Frederick G.	Marginal Punched Charge card Form Facilitates Sending Overdue Notices	1962-08-31	3	.pdf	application/pdf	1547	90	72	T h e number of first overdue notices as proportion of total circulation is 23 per cent. Although the recently published Study of Circulation Control Systems mentions that the Bookamatic charging system can supply overdue notices me- chanically1, the Study does not describe in detail a system which dispenses with writing overdues aside from those sys- tems producing photographic or other image reproductions.	cache/crl-11520.pdf	txt/crl-11520.txt