Show advance in aeronautics Aeron antics fremou from our r scientific correspondents considerable interest is now felt ila in ballooning and the tile lovers of aeronautics ro are evidently determined that some something thim shall be done to increase the usefulness of this department degart of science the balloon society I oci formed iu in en england gland some months ago ago S ii is now followed by a similar association in berlin which intends to hold an aeronautical exhibition at some sonic time during 1882 amon among the plans proposed to the britis british balloon society is that of a balloon to be kept under control by means of compressed gas the gas would bo be stored in a suitable tank under pressure and the ballo oon would be reduced in size or enlarged at pleasure by admitting or withdrawal with withdrawing drawl i ll 11 b gas which might be effected by loon simply aply turning a crank the balloon would of course fall when reduced in size and anso as it became expanded so that ballast and waste of gas as would be rendered unnecessary improvement in another direction is still sought by aeronauts aero who ara are striving to travel considerable distances in predetermined courses little success lias has attended these efforts tho the most important ballooning scheme now before the public is commander cheones Che ynes project for reach ing C the north polo pole he ile proposes to travel by sea as far as practicable ti and to complete the distance to the pole in immense balloons lie he is is very sanguine san guille of success it is to bo be sincerely biped that the thought and money now being devoted to air navigation may lead to useful results result progress thus far carlias has lias been very slow and it must be bo confessed that little material advance has been made since the time tinie of montgolfier |