Show topography of the air explorations ot of the air hive have revealed on an astonishing definiteness of arrangement in ID its layers although of course the details are continually changing ley in england En eland has directed his studies of floating balloons to a solution of the que question stion of the influence of 0 the topography of 0 the earths surface on the state of the air above it he finds among other things that the disturbances produced by hills and valleys are transmitted to an unexpectedly great elevation affecting the lovier lonar and middle strata throughout A general effect noticed Is that the velocity of the wind or of a current of air Is increased over a hill and diminished over a valley it Is thought that similar generally distributed would provide a real topography of the air |