*W, 51 oP44A
 
 
GYPSUM.
Peters, Richard, 1744-1828,
Agricultural enquiries on plaister of Paris, Also, Facts, observations and conjectures on that subtance [!] when applied as manure, Col- leeted, chiefly from the practice of farmers in Pennsylvania, Philadelphia, Printed by C, Cist and J, Markland, 1797.
111 p. 2ilcm.
Dedicated to George Washington.
Evans 32673.
1. Gypsum. 2+ iculture-—Pennsylvania. 3. Washington, George, Pres. _U. Se—
oks. to. Le Title.
Collection of Washingtoniana
 
Dedication of bo