id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71522	Heinonen, Reijo	A soil core sampler with provision for cutting successive layers	1960	3	.pdf	application/pdf	641	34	64	The cutting blade is sharpened on its upper side only in order to reduce its tend- ency to curve upwards in compact soil samples. Physical properties of soils as modified by crops and management.	cache/afs-71522.pdf	txt/afs-71522.txt