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Show sciENTrrrc topics. CURRENT NOTES OF DISCOVERY DISCOV-ERY AND INVENTION. A St, Loala Inttntor Haa s Wlil Thai Will I ipeJIta Ucaan Tratal How lllfjel. Tlrt. Slay llo Uriateal ky an Anlouialle llatlc. Ilutronlac IntotU The study of the home of burrowing burrow-ing Insects Is stlrmled with Kfcat difficulties dif-ficulties Digging down destroys them, while any preparation employed to reuder them mure firm or solid by hardening har-dening the earth haa not given satisfactory satis-factory results Plaster of parla, mad Into a thin paste, and poured Into ths burrows, hardens and forms casts Sdtaie of these hare extended six ftet btlow the surface and have Included branches tn the main burrow witn various chambers and byways, for which some ot these underground dwellings are notable It waa necessary neces-sary to make the plastsr thin and liquid, and, as a consequence, dlRlcul-tits dlRlcul-tits aro experienced In taking th casU out. Peculiarly Interesting are th homes of bees that live underground They dig Into the earth almost vertically verti-cally for about eighteen Inches, and, In some cases, get much farther 28 and 30 Inches have been meaeured Toward To-ward ths end of the vertical section, borliontsl hlghwsys and byways aro thrown out Cells are made In th end ot these branches and these are fllltd wltb pollen and honey In tome Of theSA hranrh llm vnnnv tiAu ITU liatched Tho use ot plaster enables Us, lor the first time, thoroughly to understand un-derstand Ihe manner and methods ot many of our underground neighbors, Willi a little practice, almost auy one can make cast of these underground dwelling The pltsler I sifted through th finest oblslnsble sieve, then mads Into a paste of the consistency ot thin gruel. This Is to lie poured quite slowly slow-ly Into tho burrow, care being taken that It doe not become clogged by any outside substance falling Into th aperture. aper-ture. A sufficient amount must b mixed at on tlmo to finish the Job, or, If this Is not done, no time must bo lost 'In preparing more In order that th line rosy be continuous When It hss remained long enough to harden ths earth can bo very carefully removed Th fingers are the best scrapers. Those who expect to succeed as scleu tlsls may at well learn al ths outset that ths hands mutt often be sscrluccd In the Interest ol science. Sli VaiMlM at AllmlH. There Is probably no product of- Inorganic In-organic nature about which there la so much popular mystery and misconception miscon-ception as ssbestos It t vaguely understood un-derstood that the principal claim ot this remarkable product Is that It can-not-be'coniumrd by Are. There are, however, no less thin six varieties of ssbestos, each of which possesses qual-Itlts qual-Itlts peculltr lo Itself. They may be classified as folio a Amanthus, In which the fibre are so exceedingly long, flexible snd clastic that they may be woven Into cloth Common asbestos, asbes-tos, wltb the flbre much less flexible, It Is heavier than the flrst variety, a dull green In color sometimes pearly In lustre and oil) tn tho touch Mountain Moun-tain cork, light enough to float on water. wa-ter. Mountain leather, also very light, but thinner and moro flexible than the laat Mountain paper or bluo asbostoa Mountain wood, which In external appearance ap-pearance resembles dry wood As a matter ol fact, nearly all varieties have mors or less the appesranca of fossilised fossil-ised wood Asbestos has been found lu nearly all parts of the globe, l(. II,. Tires Inflated. Pneumatlo tires oru kepi Inflated by a new automatic pump which has been patented by a Canadian, Tho valvo of tho tire It connected at II with the piston of a pump, to which Is attached the strap of an eccentric llxed to ths axis of tho wheel A ssfety valvo Is provided or a spring may be fixed on e piston to render It Inactive when Ihe pressure Insldo tho tire la strong enough to stretch tbo spring Instead ol moving the piston, lion- In l(r, Vui,-. The ever-youtbtul appearance of tho nembcrs (it tho dramatic profession Is a constant source of surprise to ths public at large The reason for this Is sot so rauob tbo greate-pulnt necessary In maklng-up, which obliterates to a tertaln extent ths natural wrinkles of the skin, while It lubricate and uour-tabes uour-tabes It, but It Is due to the chango In he expreaalon of the various emotions srhlrh every part demands This causes Ihe actress lo bring Into play all the muscles of the face, lly using them squally, they all maintain their firm 'consistency and strength,, and none waste away from disuse. The result Is that the skin It kept stretched and tente over the face, and doea not fall Into hollows. A blow ot freth air a gUnipte of freah sceaea snd fresh H facet, are worth quarts of doctors' too- jH Irs to sn over-tired and nervous mssi H or womsn. and give a ptettler glow t HH I3t chseks than the finest manufacture nannH sit rouge In existence. ggggB It It Indolence snd Isty habits that H allow obesity to gain the asoendener gnna9 sver elasticity One who ketpa rotad 99 and body on the alert will seldom need Mgagaf to have recourse to science or diet to nvw decrtsse sire and weight If you have KJTga a thin face and the flesh seems unwlll gaffll Ing to become plump and round In re (Kga spnnse to msssage build up the sy HB tem by taking a half-pint or raore ol flFuP eweet tream every day. eat of ceraaU SOlm which have been rooked lor tartrai mEm hours, a raw egg beaten up In rullk MMfi ones s day, warm drinks of milk dS IJV.1W luted wllh hot water, and bsksd swsel (Sfll apples r rise fruit at each roast. Mgfl A Ntw rialali lar rnbrlra. HK Th Importance and value ot water- gflfl proof materials la so clearly under- HHJ stood thst every attempt to produce a HflJ new material which Is Impervious to moisture Is a subject ot deep Intersil HJ to scientists snd Incidentally to almost evsry one lly the use of a material made from alkali celluloao and known as viscose tsbrlcs ot vsrlous sorts, lln- en, cotton or wool, are made elsitlo HJ and waterproof It la aald to be un HJ affected by moisture and may be wash- ed, bleached and even boiled with eoea without Injury Ths fabric Is thought to be specially desirable for book cov era, csrrlage topa and other placet whero leather It now tttrd Nothing HJ that has been devised seems to prom HH Iss such excellent results ss this nr HH substitute for leather jH Tn ripadlle Oraan Traval. HH Mlcbsel D.vy, a machinist and tnol- HH der ot St Umle, Mo, Is exhlbjtlng ft HH device of his Invention which ,bo bt- HH lleves will b of Immense value Tht HH devlco la a shield or rollsr, to bs plac- HH rd over the propeller of vessel! HJ for tho purpose of ronflnlni HH tho water Immediately abov HH the flukes and preventing thi HH whirling motion ot tho water whlcl H rendsrs Its displacement by tho whir- HJ ring wheel so essy that there Is a, con- Hb slderabls waste of power Kipsrl- ?Hfl mtnls with models have shown that 'H a hooded propeller exerts mors pusl HJ upon a ship than sn uncovtfsd one.rs- HJ volved by tho same amount of powel HJ a the former. HJ I'nlloO Nlnlaa Natal llbaarsalsry, Tho work of winding and keeping Is M order tho chronometer at the Naval HJ Observatory la In tho hsnds of an ex J pert, and Is unquettlonsbly tho moil H perfect specimen of this kind ot retries HJ In the world Among the duties of thli H ofllclsl are tho keeping In accurate H time and condition the chronometers aH for tho uio of tho navy It taksi HJ months to adjust souio of theso Jlmt- gH kteper Dvery day between II HJ o'clock and twenty minute to 19, noon, HJ comparisons are made and teats. Thli HJ portion of the work Is csrrled on In s HJ temperature room, which la htslcd bj HJ hot water by means of gas, then cooled H by refrigerating pipes, so that durlns J tho year around tho temperaturo Ii HJ not allowed to vary over two degrees, HJ After the dully tests are made th ap B paralua Is put In order and averylhlni HJ Is subordinated to the noontime str HJ vice I'or a certain number of tecondi HJ at midday the government controls tbi M entlro telegraph service of the country M and time balls are dropped In mutt of HJ tbo large cities HJ LounleiMt Isury, HJ Largo quantities of article) made ol H Ivory having been put upon the mar H kst at extremely reasonable prices, led HJ to an Investigation as lu their source. H The supply of Ivory Is so limited thst HJ the prices ran scarcely be varied there HJ fore there waa evidence that spmethlng H uncommercial was being dune It wai HJ found that the fruit of a variety of H palm was being utilised This fruit H hss a very hnrd and white kernel It can bo worked In a lathe and Is ol HJ such fine quality that experts may be H piixtlrd to distinguish It from th gen- H ulns article. It Is susceptible to al- H most all uses to which genuine Ivory H Is put Tu detect Ihe difference apply H a small quantity of concentrated sn.1- HJ phurleacld. This cause the imitation HJ article to aasumo a shade of pink while' H on genuine IVory It produces no chsngj HJ whatever. HJ The Valat ot Nktin 3111k. H Hi fry dairy womuu and milk expert HJ has observed tho peculiar effect ocrn- H alonally produced Tjy milk on various HJ fabrics Bomellmeir-they bocomo so H completely waterproof that they uro HJ thrown away because they cannot be H washed This fact has led lo tho mil HJ Italian of skim milk as a basis for a MJ product for glaring paper and other H articles The sklni milk Is put Into n HJ bath, treated with chemicals and fried (H from Its superfluous liquid It Is then jH dried and sent to market In lir.i H sacks The usefulness of skim milt HJ which for many years was considers I H next to a watte product Is Just becom H Ins appreciated, HJ disss Is not used for tho windows ol H houses In Manila They are glared HJ with translucent ostcr shells HJ |