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—, —, Observations on the genus Unio, &c., xxxv, 184.

—, C. F. Ledebour, Flora Rossica, xliii, 188; xlvi, 198.

—, A. M. Legendre's Geometry, review of, vi, 283.

—, G. Leonhard, Handwörterbuch der Topographischen Mineralogie, xlix, 188.

—, K. C. von Leonhard, Geology, xxxix, 393; xli, 387.

—, J. Liebig, Organic Chemistry in its applications to Agriculture and Physiology, xl, 177.

—, —, Animal Chemistry, xliii, 379.

—, G. W. von Leibnitz, Protogæa, review of, xx, 56.

—, J. Lindley, Horæ Botanicæ, notice of, xix, 161.