Keeping fit. (U.S. Public health service) 13p pa ’20
Pickles
Fermented pickles. Edwin Le Fevre. (U. S. Agriculture dept. Farmers’ bul. 1159) 23p pa ’20
Pine
The western pine bark-beetle, a serious pest of western yellow pine in Oregon. Willard J. Chamberlin. (Oregon. Experiment station. Station bul. 172) 30p pa ’20 Corvallis, Ore.
Poison ivy
Ivy and sumac poisoning. E. A. Sweet and C. V. Grant. (U.S. Public health service. Reprint 584) 18p pa ’20
Poison ivy and poison sumac and their eradication. C. V. Grant and A. A. Hansen. (U.S. Agriculture dept. Farmer’s bul. 1166) 16p pa ’20
Pork
Selecting, dressing and curing pork on the farm. M. D. Helser. (Iowa. Agric. experiment station. Circular 61) 24p pa ’19 Ames, Iowa.