—, new form of, J. H. Alexander, xlv, 233.f
—, new self-registering, xlix, 400.
—, effect of sound on, xxx, 377.
—, directions regarding, by E. Mitchell, xx, 364.f
—, siphon, in determining the temperature of the mercury in, by observation, xl, 250.f
—, water, constructed in London, xxiv, 198.
—, remarks on, W. C. Redfield, xxv, 129.
—, use of, at sea, W. C. Redfield, xxv, 198.
—, changes in the column, as connected with the progress of a storm, W. C. Redfield, xx, 45; xxv, 117; xxxi, 127; xxxiii, 262.
—, variations of, W. C. Redfield, xxxiii, 262.