Michailovitch, J., cited, [84].

Microscopical petrography, [27].

Migration, of divides, [175].

Mill, H. R., cited, [424].

Mills, glacier, [398].

Milne, John, cited, [75], [92], [93].

Mineral fragments, possibility of growth of, [24].

Minerals, alterations of, [27], [28];

common, properties of, [452-461];

of economic importance, [452-456];