| Show in scientific observation the last number of the proceedings proceeds edi of the german geographical society says cael et terre contains a paper by dr A berson on the use ude of balloons in geographical explorations As dr berson has made numerous scientific ascensions both in free and in captive saloons ba loons his observations are extremely interesting he notes the importance of captive saloons in arctic exploration and regrets that dr nan nansen en abandoned this method of investigation vesti gation which he be had bad at first intended to employ dr berson condemns energetically the project of M andre of trying to reach the pole in a free balloon he is convinced that this aerial abrial trip it if it should be carried out will lead to a disaster in his many ascensions mr berson has met with every kind of meteorological condition and in all seasons he has found that the temperature st at high altita altitudes dew decreases more ore rapidly or at least quite as rapidly v as at low altitudes arad that at heights exceeding z meters feet thera ther exist temperatures pera tures lower than those deduced from the tafe ascensions of glasher alsher Gl likewise wi se the k increased the speed of the currents as one gets higher and higher Is greater than ihan bay bas teen been supposed in one 1 ascension etien when the velocity of theAir al I 1 ift aai filom kilometers eters 7 miles asadur an iLOur between the hilgh height 0 of 1005 L i niters 4 ii and F 2 I 1 me ine 1 tera oWl fidi 4 1 ana bod U ea r ak i W t I 1 differs I 1 M xi iiii ii az acour j preponderance fifi rance t OV ot I 1 ii afo ampo ai ent i i 71 prot al el f r 1 1 lobser 1 1 ur tic rl iciak I 1 a surf 7 af adiv 1 airam A z it 1 1 W wa it it i A iia I 1 R 01 E 41 W 4 1 |
