Nucula, see under [Zoology, Mollusca.]
Nugent, geology of some West India Islands, i, 140.
Nulty, E., on formulæ for comets, xxxviii, 160.
Number five, the most favorite of nature, xvi, 172.
Numbers, interesting properties of, G. R. Perkins, xl, 112.
—, analysis of square, A. D. Wheeler, xxv, 87.
Numerical faculties, theory of, vii, 285.
Nutation, new determination of, Peters, xlvii, 90.
Nutmeg, in Singapore, xliv, 153.
Nutriment of gelatine, xxii, 197.