Show miscellany has ayoung mena society it holds weekly meetings and each member in turn gives alee lure upon gome scientific topic trials with the electric light in navigation at night have lately been made on the chine it is hoped that the result of these trials will lead to a new phrase in river navigation whereas previous investigations have indicated a height of about miles as the greatest extent of the earths atmosphere M jose J lan deur in a recent paper places it at not less than miles on august first an international exhibition of electricity bill open in paris every description of electrical apparatus will be shown it is considered quite protia ble that the prince of wales will act as president of the exhibition A new french appliance is an electric brake which is made to operate on tho wheel brake by means of electricity generated during the motion of the train and applied at pleasure experiments thus far made with this apparatus have been entirely suc dr werner siemens has applied electricity to the operation of elevate ore uis system which operates through the transmission of power by the dynamo electric machine is as safe aj the hydraulic system and is claimed to be far less costly and inconvenient the experiment of irritating lands in the neighborhood of pans with water from sewers is said to be working successfully sherila tracts of land have been converted into fertile plants while no increase ness among the inhabitants has followed as was apprehended the rare phenomenon of an in rainbow was observed at a prussian town oa the morning of november the end of the semicircle the centre of which was the sun rose and moved westward with the latter for somo thirty minutes when the appearance vanished speaking in a recent lecture of discovery hat diio sun is rapidly moving toward a point in the constellation IIer calM prof ball the astronomer royal tor ireland told his audience that at the end of the lecture they would be miles nearer to it than they were at tho beginning it is a baft known to cloth manu facture rs that vegetable fibers mixed with woolen fibers cannot be equally spun dyed or woven together an austrian scientist claim however to have discovered a chemical pro cess by which this combination comb nation of varying fibers may be rende amenable to the operations mentioned extensive observations of ho aurora borealis have ben made in europe from the results of which eiert Tr infers that the aurora is alomal phenomenon circumscribed by narrow liiri tr and manifested at inconsiderable distances from the earths surface the light is white less eften red or green that sound often accompanies the aurora berr Tr emholt believes to be an indisputable fact now project is to be tried for diminishing tho fogs of london by tho plan proposed about 30 cubic feet of gas would be extracted arm each ton of coal burned in the chiy the col being thus renil smokeless the gai would aed for illuminating purposes in this nixie ner iha perfect combustion of both tha coal and the g is would be en and londoners Lon doners would no longer have an atmosphere thick with particles of unconsumed carbon A new theory of ho cause of earthquakes has been propounded by dr covak of besth he con sidera that besides the rotation of the earth on its axis and its revolution around the eun a multiplicity of motions of the earth appear in space in virtue of which the earths axis and with it the equator shift their position this causes u variation of the forces centrifugal and centripetal influencing tho earths nr marid the crust has a tendency to adapt itself to this chango A nura clurg chemist lias devised a new method of decorating silks and other fabrics which is expected to su perside embroidery the art is called io and ahn operator uses hollo pencils are a alid metallic compound ua to the compound instantly hardens every color can be produced and the designs traced with tho are durable lasting as long eril oi which thoy are traced J ha can h and woodenware wooden waro and pottery decorated by the same procesa pro cesi the the pencils has already le came a con industry in oer w |