Owhyhee, see [Sandwich Islands]–also under [Geology] and [Volcanoes.]

Oxahverite, xv, 387, [Apophyllite.]

Oxalates, experiments on certain, xiii, 188.

Oxalate of lime, crystallized in plants, xxi, 372.

Oxalic acid, Gay Lussac, xxvii, 400.

— ether, new product from, Malaguti, xl, 215.

— — and chlorine, compound of, xl, 215.

Oxygen, absorption of, by water, ii, 349.

—, abstraction of, from the atmosphere, xii, 91.

—, specific gravity of, xxxv, 298.