Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . Fig. 1G3.—Curves taken by recording instruments. In the lower half the curves are marked by a pointer on a piece of paper that has been coated withsoot. These curves are shown clearly in the upper half of the illustration. It is intended to use a motor-boat for the purpose of starting theflight. The Kaiser has taken great interest in scientific balloon-ing, and was present at the inauguration of the new observatory,together with the Prince of Monaco and
Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . Fig. 1G3.—Curves taken by recording instruments. In the lower half the curves are marked by a pointer on a piece of paper that has been coated withsoot. These curves are shown clearly in the upper half of the illustration. It is intended to use a motor-boat for the purpose of starting theflight. The Kaiser has taken great interest in scientific balloon-ing, and was present at the inauguration of the new observatory,together with the Prince of Monaco and other well-knownmeteorologists. 262 AIESHIPS PAST AND PEE SENT. The greatest height reached by a balloon with recordinginstruments was 85,000 ft.; and this took place at Strassburgon August 3rd, 1905. The highest ascent with a kite was madefrom Lindenberg on November 25th, 1905, when an altitude of21,100 ft. was reached. The height which a balloon will reachunder these conditions depends of course entirely on thequality of the materials. It is possible that some little time will . * ma;.;. Fig. 164.—Curves given by recording instruments. elapse before ascents will be made over the surface of the Schar-miitzelsee, and it will therefore be well to consider what hasalready been done by way of carrying out observations above thesurface of lakes and seas. The greater part of the earths surface is covered with water,and the exploration of the atmosphere that lies over the sea isan absolute necessity if any progress is to be made towards thediscovery of general laws. Piotch first pointed this out, and sentup balloons with recording instruments over the sea. In thespring of 1900, Professor Hergesell sent up a kite by means of amotor-boat over the Bodensee, and soon the number of observers SCIENTIFIC BALLOONING. 263 increased. Rotch and Teisserenc de Bort crossed the Atlantic,Berson and Elias went to the North Cape, and Hergesell madean expedition with the Prince of Monaco in th
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