Special contributions are—
Barograph curve, Winter, from south Pacific Ocean; by Robert De C. Ward.
Balloons, Photographic apparatus for measuring altitudes attained by; by L. Cailletet.
Electrical energy, long-distance transmission of, Climate as controlling factor in; by A. G. MeAdie.
Electricity, Atmospheric, its origin, variations, and perturbations; by Marcel Brillouin.
Rainfall, heavy, Area of, in southern Appalachians; by B. C. Hawkins.
Sunshine recorder, Improved; by D. T. Maring.
Winds and clouds; by Marcel Brillouin.