Regulations concerning coal mining leases, permits and licenses, under act of February 25, 1920. (U.S. General land office. Circular 679) 28p pa ’20
Leather
The care of leather. F. P. Veitch, H. P. Holman and R. W. Frey. (U. S. Agriculture dept. Farmers’ bul. 1183)
Leather industry
Hides and leather in France. Norman Hertz. (U.S. Bur. of foreign and domestic commerce. Special agents ser. 200) 159p pa ’20
Legumes
The story of legumes. W. C. Frazier. (Wisconsin university. College of agriculture. Extension service. Circular 125) 19p pa ’20 Madison, Wisconsin
Lumber
Production of lumber, lath and shingles in 1918. Franklin H. Smith. (U.S. Agriculture dept. Bul. 845) 47p pa ’20
Machinery