id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
inhs-339	Richardson, Robert	The Small Bottom and Shore Fauna of the Middle and Lower Illinois River and its Connecting Lakes, Chillicothe to Grafton: its Valuation; its Sources of Food Supply; and its Relation to the Fishery	1921	184	.pdf	application/pdf	23214	746	62	Thanks are also due Dr. Edward Bartow, Chief of the State Water Survey, for his interested cooperation in obtaining the san- itary chemical analyses of river waters in 1914; and to Prof. S. W. Parr for supervising the analysis of the bottom mud samples taken that year and the year preceding. Comparison of such data as we have for the season of 1913 with the more complete results obtained in 1915 indicates generally a quite satisfactory correspondence both in average composition and size of the bottom-fauna stocks in the longer reaches of river channel between Chillicothe and the Kampsville dam, both series of collections bringing out clearly the contrast between the more productive reaches of channel above Havana and the decidedly poorer stretches below.	cache/inhs-339.pdf	txt/inhs-339.txt