"General hemispherical direction of horizontal (lower) air currents." -Waldo, 1896
"General hemispherical direction of horizontal (upper) air currents." -Waldo, 1896
"Direction of a whirl for...an anticyclone (Northern Hemisphere)." -Waldo, 1896
"Direction of a whirl for a cyclone...(Northern Hemisphere)." -Waldo, 1896
"Air pressure and air motion within a cyclonic area." -Waldo, 1896
"Regions of air motions and calms along a meridian." -Waldo, 1896
"Deflection of the winds by Earth's rotation." -Waldo, 1896