Memory, the process of, I. Orr, xxiii, 278.

—, loss of, from the use of gin, xxvi, 211.

Menardite, supposed new mineral, from Spain, xii, 385.

Mengite, xxvi, 388; xxxix, 249.

Mental aberration as connected with civilization, xxii, 379.

Mercapian, Zeise, xxix, 368.

Mercurial atmosphere, iii, 385.

Mercury, atomic weight of, xvi, 183; xlviii, 402.

—, amalgam of, W. W. Mather, xxvii, 263.

—, congelation of, vii, 192.