—, Wonders of Geology, review of, xxxiv, 387; xxxix, 1.
—, letter to J. Deane, xlv, 189.
—, Medals of Creation, review of, xlviii, 105.
Manufactories of Lowell, xxvii, 346.
—, limitation of the labor of children in, xii, 194.
Manures, action of, De la Giraudieu, xxvi, 179.
—, action of gypsum in, xxvi, 181.
—, marl for, from Chesapeake Bay, xx, 411.
—, —, from New Jersey, J. Pierce, vi, 237.
—, remarks on calcareous, xxx, 138, 383.