—, material for, from the Rose of Sharon, xxviii, 371.
—, from Manilla hemp, xli, 200.f
—, strengthened by a solution of glue with oak bark, xxvi, 186.
Rosaic acid in urine, xvii, 385.
Rose of Sharon, fibres of, xxviii, 371.
Roses, preparation of oil of, xxviii, 383.
—, stearoptine of oil of, xxviii, 383.
Rosé, G., on the identity of Edwardsite and Monazite, xxxv, 249.
Rosé, H., on the new metals niobium and pelopium, xlviii, 400.