Oak tree, wood, bark, saw-dust, and acorns, uses of, [222]-[225]
Oatmeal, uses of, [24]
Oats, mode of cultivation and uses of, [24]
Oil-cake, of what made, and uses of, [87], [174]
Olive tree, description and uses of, [11], [12]
—— oil, how prepared and uses of, [11]
Olives, how prepared for use, and uses of, [11]
Onion, Canadian or tree, description and uses of, [90]
——, common, description and uses of, [91]
——, Portugal and Spanish, [91]