Millicurie, definition of, 256.
Molasse, accumulations of, 148.
Morin, coefficients of friction, 265.
Morphy, H., experiments on coefficient of friction of ice, 281.
Mountain-building and the geosynclines, 119-121; conditioned by
radioactive energy, 125; energy for, due to gravitation, 122;
reduction of surface attending, 123; depression attending, 123;
instability due to thermal effects of compression, 132; igneous
phenomena attending, 132; rhythmic character of, accounted for,
133; movements confined to upper crust, 122; movements due to
compressive stresses in crust, 122; movements, rhythmic character
of, 121.
Mountain ranges built of sedimentary materials, 118.
Müller, J., coefficient of friction of skate on ice, 265, 274.
Muth deposits of India, 135.