✍ Scribed by Petterson, T. S.
No coin nor oath required. For personal study only.
illuniiniuin lins not yct Lccii iiintlc in S p i n , but the first iduiniiiiiiin factory, wlticli lins bccn cstablished by the Socicdncl Aliiiiiinio 1 3 q ~i ~i M S.A. (citpitnl, 3 inillioii pessct:is) at SnLiii:iriigo, l'rovi~~ce o f Ilucsen, lyill shortly hegin opcrirtions. 'l'h outpiit will n t first be 1500 tons of iiictiil p r : m i i i i n , :III nniorint roughly corresponding to tlie Sp:iiiisli coiisuiiiption, hut tlic GO Soderbcrg furnaces iiistalletl cnn produce 1111 to GO00 t. per anniiiii. t t is Iioped to ol)tnin protcctivc duties iignirist World Output of Mercury According to tlic U.S. Coiiiiiicroc Iteports, the world productioii of nicrcury in 1027 ninountcil to 71,000 llnsks {of 75 111. cnch), conip:ircd wit11 116,000 ia 1026 and 35,000 i n 1935. iinport 21 1' 1011. Window Claw Transparent to U.V. Light Recently n nurnhcr of wricties of gliiss have been p r o d ~y d wliicli tmnsinit light of wave-lcngtli less than 3200 A , to wl~ich ordiiiary window glass is practically opiquc. 'l'lic propcrtics of mine arc rcvicwcd by Dr. Sahoriy in tlic *' Chcniikcr Zcitung " (April 4). 'C'hey gcncr:dly coiltitin boric acid, or arc nindc from tho ordintiry ni:rtcrials of special purity. Specimens 2 inin. thick csnitiiiictl by tlic l'liysilinliscli-Tecl~iiisclie IEciclisnnstalt gnvc i i triinsniission wrying froiii 5545% a t 3100 -1, and horn I-lS% nt 3750 11, which decreases
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