by F. P. Veitch
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Leather investigations
Commercial turpentines: their quality an...
Wood turpentine
Wearing qualities of shoe leathers
Turpentine
Paper-making materials and their conserv...
Poison ivy, poison oak and poison sumac
Poison-ivy, western poison oak, poison s...
Notes on the genus Rhus
Poisonivy and poisonsumac
A Field Guide to Poison Ivy, Poison Oak,...
Poison ivy, oak & sumac