—, —, Memoir on some Saurian remains of the Tilgate forest, xliii, 189.
—, —, Medals of Creation, xlviii, 105.
—, E. le Maout, Leçons élémentaire de Botanique, xlviii, 206.
—, J. P. Mapes, American Repertory of Arts, Sciences and Manufactures, xxxix, 394.
—, C. F. P. von Martius, Systema Materiæ Medicæ Vegetabilis Brasiliensis, xlviii, 207.
—, —, Flora Brasiliensis, xlv, 217.
—, M. F. Maury, Treatise on Navigation, xxxii, 208.
—, Meyen, Neues System der Planzen-Physiologie, xxxix, 187.
—, Hugh Miller, Old Red Sandstone, or New Walks in an Old Field, xliii, 198.
—, S. L. Mitchill's edition of Cuvier's Essay on the Theory of the Earth, i, 68.