id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
inhs-265	Bellrose, Frank	Duck Food Plants of the Illinois River Valley	1941	50	.pdf	application/pdf	18352	997	69	Approximately 2,500 longleaf pondweed plants, 4,000 muskgrass tufts, 100 creeping water primrose plants and over 1,000 each of hardstem bulrush and giant bur-reed plants were used. Index of seasonal variation in Illinois River water levels over a 20-year periodi 1920-39, at Peoria and Beardstown.	cache/inhs-265.pdf	txt/inhs-265.txt