Rensselaer, S. van, obituary notice of, xxxvi, 156.

—, notice of his survey in the district adjoining the Erie canal, viii, 195, 358.

Rensselaer school, travelling of, xviii, 200; xix, 151.

— — flotilla, xviii, 200.

— —, incidents of, in 1830, xix, 153.

Rensselaerite, is steatitic pyroxene, L. C. Beck, xl, 77.

Renwick, J., longitude of New York, v, 143.

—, on a new mineral, viii, 192.

—, translation from the Astronomical Journal of Hamburgh, xvi, 225.

—, letter to, by E. Sabine, on the magnetism of the earth, xvii, 145.