Cholesterine, action of potash on, J. L. Smith, xliv, 60.

[Chondrodite,] account of, v, 203, (called yellow mineral); v, 245.

—, crystal of, J. D. Dana, xlvi, 381.f

— in New York, v, 30; viii, 92; ix, 244; xix, 223; xxi, 325.f

— in New Jersey, v, 30, 245; vi, 250.

— in Pennsylvania, viii, 239; xiv, 17.

Christianite (anorthite), xi, 261.f

Chromate of potash, to test the purity of, S. Zuber, xxiv, 372.

— —, (bichromate,) manufacture of, at Glasgow, xli, 50.

Chromatype, R. Hunt, xlvi, 396.