Mud of New Haven harbor, analysis of, B. Silliman, Jr., xlviii, 337.

— eruptions, iv, 216.

— furrows in rocks, J. Hall, xlv, 148.

Muhlenbergia filipes, xliv, 83.

Mulberry tree, on the culture of, in the United States, xviii, 278.

Mule from a stag and mare, xiv, 392.

— silver, xiii, 200.

Multiplier, galvanic, see [Galvanic.]

Munich, public instruction in, iv, 196.

Murchison, R. I., departure of, for the Urals, xli, 207.