— classification, O. W. Gibbs, xlix, 384.
— equivalents, Wollaston's scale of, xvi, 371.
— —, scale of, improved, by L. C. Beck and J. Henry, xiv, 202.
— —, circular scale of, J. Finch, xviii, 196.
— examination of some morbid animal products, J. F. Dana, iv, 149.
— —, of the odorous fluid of the skunk, iv, 391.
— force of the indigo-tithonic rays, instrument for measuring, J. W. Draper, xlvi, 217.f
— manipulation, washing bottle in, xxxi, 292.f
— nomenclature, Berzelius on, xxii, 248.
— —, R. Hare, xxvii, 63; xlix, 249.