Th: Jefferson salutes mr Duane and asks the favor of him to procure & forward to him the following books, which he thinks he mentioned to him in conversation when he had the pleasure of seeing him last, & mr Duane thought he could procure the editions desired

Malthus, if an 8vo. edition can be had.
Conversations in Chemistry	}	decent English editions in 8vo. or 12mo.
Cumberland’s Memoirs		the American editions of these books are too indifferent to be read.
McMahon’s book of gardening
Barton’s elements of botany, unbound, because I wish to have the two vols bound in one.