Show SCIENTIFIC sd MISCELLANY The Tho exports from Assam of ot Inc lac usually as liS crude etude or stick sUck lac have averaged about GOO COO tons tone annually in mr recent years yearn though thu Iho th production of ot some forests Is declining d The Tho tech resin I Is usually usual collected twice a n year In May Mn and June and again In October ont end N list crop being used for Cor to peed purposes while the tho second Is ex cx exported ported A few tOIV days after atter the tho gather gatherIng log Ing pieces of or stick lao containing liv tv tvIng lag Ing Insects ore are placed In Ini small bamboo I Ia L a I i me ILl i u wu w au are aro lo to furnish the thc next crop rap Tho The In Insects insects sects Mets quickly spread over the tIme branches anti and begin at once onCI to feed teed anti and secrete resin If It the secretion Is satisfactory satt It t Is ls collected nt at the tho end of ot about sIx bix month If It deficient the thc Insects are allowed another The Tho o 0 Goo Oeo GooW W v Breed formerly of at tho the United States Navy Nary Na Is to sustain the tones of ot the lie aa as In the tho flute tl to or violin A Arow row ro of ot delicate electrical contacts Is connected conno tetI with the tho keyboard and amid with witha I a row rev of ot little nets In front I I I of ot tho time strings BO 50 rn that while any nn key Is h pressed the tue corresponding magnet keeps UD 1111 string in Iii continuous vibrations A set act of ot four our push buttons is hI ar ur arranged ranged to 10 give considerable variation very vory beautiful effects eUceta A knee swell sell throws the tho attachment Into action and when ilien this tubs b Is I not being ud thu Iho piano lues hns its itt usual tone toM Acetylene bids fair to become tha thu national In Germany Al AI unknown lIve years yeti I ago 0 except to a n low law chemists the tho consumption ot 01 calcium in the tue country In 1000 Is III estimated at tOOl tons equal In Illuminating power to 10 about of petroleum Small towns lowns art aN rapidly introducing this gas which has been very also on trains A novel practice of an on English pho photographer is lx the tho dedication of the to so called dry diy plates over the tho water bath at degrees P F for ft a few minutes time gives Increased def deC definite hub details and brilliancy but where a softer Imago Is desired the gelatine Is ii exposed with Its usual moisture Steel IB Itt now mado by time the process at about forty differ different different ent plants ono one of which has been In operation several months near Chicago In special converters pg Iron and selected scrap previously melted In a cupola are exposed to an air blast across the thc surface of which produces great heat by the combustion of the tha metalloids In the tho pig Iron and leaves nearly Iron at Ut the tho end of 15 ii or iO O minutes The necessary silicon man manganese and carbon ara Introduced into this Iron by tile the addition of ferro man mali manganese or ferro silicon or both boOt the tho metal being then drawn oft off Into n a ladle and poured This process Is especially adapted for small email castings of every variety rIme Tho metal Is hotter antI and more than that obtained by any other method ensuring thu tilling filling of all parts of the tho mold without cracks or pin pinholes holes and any aimy grade of steal from the thelow low carbon desired for electrical pur purposes purposes poses to the tho very hard liard required for mining and other machinery can be obtained by varying the tho additions The casting will stand forging anti and welding ninny many of them being Intended to re much mouth moro more expensive forging which they aro claimed to equal In all respects Among tIme the extraordinary Insects discovered by British naturalists of the Malay Expedition of wore so closely resembling the Slower that U It wits wan Impossible to distinguish them from the tue flower in mu A pursued by Mr tr Nelson Annandale suddenly flaw flety Into the tho air from the bark of n a tree without opening Us its wings and alighted on n a root nix feet feel away At the this singular movement could not be explained From a preserved specimen It line has since been discovered that thata a projection on thin head of the creature U is a leaping organ and that when this projection or nose lt Ia bent back and awl sud suddenly denly the tho Insect Is projected Into the tho air like a pellet from a bent whalebone It Is to the tho peanut that Herr her Bor nega of Hungary looks for the tho civil atlon of Africa Great crops are al already ready raised by natives of the thc British and possessions and the Germans are aro otso to encourage the Industry Resides Besides supplying vatu valuable able oil the product containing much nitrogenous matter Is being used In concentrated army rations The number of known explosive la Is stated to have havo Increased from 25 to 1100 In years A beautiful reproduction of a total solar Is obtained by Prof R II W Wood with very simple apparatus A rectangular glass tank which may bo be boa bea a foot square on the tho front end and six In Inches ches chea wide Is filled with watt water r rendered milky with a spoonful or two of weak alcoholic solution of mastic and Into this Is lowered a e Incandescent cent lamp which serves serve as the sun with a metal disc slightly larger fixed to the tho point by wax and performing the part of the moon Several threads thread of tin foil attached In two groups to sides of the lamp give the polar streamers the tho strips stripe of foil and the tho spaces between being each to of an am Inch wide The wires of the tho lamp art are kept to tin time lamp In a of the lamp aro ar k ept pt dry by enclosing In a glass tub which Is attuned to the lamp and made tight at bottom end eM by wax On viewing tram from the front the light Is a perfect solar corona In miniature pol r streamers and anit illumination and on 44 adding a malachite green or other bulish green anIline dye to the water the tho weird color of the sky Is out the tho effect of the corona heightened I Th of acute rheumatism ling h a ben bom found by Prof Irot In ive f out ot of six eases cases to this thu affection Laboratory animals prove very sue BUS c to Its action hut but they may bo tie Immunized I by successive Inoculations The Tho mIcrobe IB is very tery sensitive to tall sail of soda auda Its virulence Is lessen lessened ed by repeated cultivation but may bo be restored by passage through animals The Tho new Irrigation ditch of Maul Maui one of the tho larger of time the Hawaiian Islands Is 22 miles tOng Ions tins 74 ii tunnels ag aggregating aggregating f milts miles In length and Is es especially especially remarkable for Its crossing of Hutches gulches by Inverted siphons of pipe 41 In diameter One of these gulches Is U feet deep The Tho ditch delivers gallons of water dally daIly anti and has reclaimed acres of cane land cultures of the time tho organism causing the ence en e of sea seit are stated by time the London Lancet to be obtainable by placing a fresh haddock or herring In Inn n St two tier per cent and keep ing nt at about 40 degrees F In a few days both fish flah and fluid uld emit a pale greenish light which can bo be made brighter by a little sugar |