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Show 'scientific TOPICS COARENT NOTES OP DIBCOVEItY AND INVENTION. llolSa Slrral Car Traairrra Tliln.l la Tbal Lull Thr.a.l Kaw Man-Stni ping llallal Tha tain l tnrrliMllan Improvement lu Ilia Klnrloaevl The tain ol tarrlnatlnn. The flrc attack recently made by Alfred Itussel Wallace In hla able book, lh ' Wonderful Century," on vaccination, vaccina-tion, ha called out opinions held by other scientist In different part of the world on Ihe aubjert One of the latest lat-est tu appear aa an advocate of vaccination vac-cination I Dr llliioeero of Horn who ha lectured In that city In A manner, aays a correspondent of the !.ondon Lancet, tn make a deep Impression It passed over hla own country Italy Ihua leaving his foreign readers In Ignorance Ignor-ance of how the eaae stand there, but derma ny he aald, I atone tn doing its entire duty by Its people In respect to vnrel nation That great empire. In consequence of the calamlto is smallpox small-pox epidemic of 1870-71 enacted the law of IS7I which make vaccination obligatory at the tenih year What waa the result ' With a population of B0 000 000 having In 1171 Ion 11 000 lives by smallpox she found by her law of 1S7I the mortality diminished so rapidly thai today the disease numbers only 118 victims a year These cases, moreover occur almost exclusively on her frontier If It were true, Professor llltmzcro went on lo say luat a good arclnatlon does not protect from epidemics, epi-demics, we ought to find In smallpox epidemics that tha disease diffuses Itself It-self In tho well vaccinated no less than In the non-vaccinated countries Hut It Is not so In 1S70 71. during Lie rranro-I'russlan war, the two peoples Interpenerated each other the Herman having Its civil population vaccinated optionally, but Its army completely re-vaccinated, re-vaccinated, while Ihe Trench (population (popula-tion and army alike) were vaccinated perfunctorily Iloth were attacked by smallpox, but the French army numbered num-bered n.000 dtaths by It while the flerman army had only 118, nnd In the same tent, breathing the same air, the Kreneli wounded were heavily billed bi-lled by the ill, whll th Herman wounded, having been tacclnated, had not a single case. ! InipntteinrnM l Ilia liliirlirie. ' I have Just succeeded In getting perfect per-fect photographs for the klnetnscope that will be four by flte Inrhes In else " said Mr. Hdlson ' Plila means that when they are thrown on a screen they will be a ptrfect reproduction. As thlnga are row, a man's head It no bigger big-ger than a pin point In the ordinary photograph for the klnejoicop, Hut with my Improved apparatus we ran rotor the fixtures and show things Jutt at you tse them In nature The nd-tantngc nd-tantngc of this will be apparent when I tell )ou thnt we prnpnae to photograph photo-graph a grand opera performance and, reproduce It with tho nsslttance ot my latest Improved phonograph. I havo Just succeeded In making cylinders that will reproduce the tone of the human voice with all the aneetnets and vol-umo vol-umo that could be desired Indeed, It would take an experienced ear to detect de-tect the difference between tho s.nger and tho tinging Instrument or the talker and the talking machine The only neceary concomitants for a grand opera performance are a drop curtain my own phonograph and klnet-oscope klnet-oscope and two men This may seem like a fairy tale but It Is n fact The bigger you mako the cylinder for tha phonograph the more perfect Is the reproduction re-production And If you have a serlet of them ray like a steamers funnel, ou can easily reproduce the vocal part of an opera performance Jutt think how cheap the outfit would bet A curtain cur-tain would be all tho stago scenery necessary nnd two men could work the machine from behind Why, tho admission ad-mission fee would not be over a quarter quar-ter at most, and the poor could hear Melba, Nordlra Kami the de Ilcsikes or other great singers for a mere song' ' Tlilmul That Cull Tlirrml. A (lerman manufacturer has placed an the market a now thimble, with a turnable knlfi Wluu a inn ad It to be cut oft tin knife li lo I opened by the small handle ho (hat the thread Is put between lh two i uttlng nlges and by closing up the knife the thread It cut off The article has found a ready sale all over Oermnny The obnoxious habit of biting the thread off with the teeth would be avoided by Ibe adoption adop-tion of this thimble As a rule scissors scis-sors are never where they ought to be sua our women are spared a halt-day's work In hunting for thsm! That's what the (lerman Inventor says ru r,i iniioni Uxploslons of gas In private houses are, unfortunately, very common occurrences, occur-rences, and could nearly always be avoided hy the exercise of a little care It Is only occasionally that we hear of an escape of gas being dnt to some ignorant ig-norant person blowing out the flam Instead of tumlmfioff the gas at the tt i, for except In few remote place. gas and Ha waya are familiar to all It la this ramlllarl.tr vrhlrh breeds the proverbial rsrslaaasiess and callousness which prompt people to nek an escape es-cape of gas with alight In nine case out of ten the escape I due to tb telescopic tele-scopic fitting of a gaaaller bet"-mlng dry This Is obviated by the addition tn the water with which the fitting 1 charged of a few drops of swrat oil or coal oil which forma a layer on th surface and atopa evaporation It this precaution were commonly adopted the number of gat explosion wouid be sensibly decreased Hold Hlreal lir Triitr. I Something nw in rallnmd street I car punchea la n magaslne transfer I punch espsclally suitable tor small I roads The Instrument which Is a tiny affair, as shown by th Illustration, Illustra-tion, It loaded (thla one holding XtO transfers) at the nation and locked To Issue a transfer the conductor sets a pointer, which Is on the end of the small c Under opposite lh time dial, to Indicate the route for which the tranafcr Is Intended and then turns the tlmo dial through ons revolution, when a Irnntfcr ticket bearing the dato, time place of 'isue and domination is pushed out at shown This arrangement arrange-ment prevent mlttak In the dating, time or Issuance of n tlekeL w 5Uii.KI"P.ln lliillrt. nxperlments were conducted In Illr-mlngham Illr-mlngham recently with a new man-flopping man-flopping projectile, the Invention ot Mr Leslie II Taylor, the mnnsglng director of the famous firm nt West-ley, West-ley, Illchnrdt & Co The main object of the new bullet Is to produce a moro extensive wound at short distance, but Its resisting power was proved at 100 yards which Is considerably in ox-cess ox-cess of the range at which nil officer would use a revoUer ' Walt till ou see the whites of his eye " Is the maxim max-im practiced In regard lo revolver tiring tir-ing in the army The bullet, which weigh eighty grains, has a flat, exposed ex-posed lead coro projecting from tho nickel envelope. The protruding lead Is undercut In n tapering fashion to-toard to-toard the point where Ihe nickel Jacket terminates The shoulder thut serves to cut or punch out on impact n clearer entrance hnlo of much larger dimensions dimen-sions thnn the ordlnnry shaped bullet. The flat surfaro naturally retards tho passago of the bullet, which theroforo expends a greater amount of bullet enures within the object struck This process of rotlttanco Is Increased by the pretence of on air chamber at tho bate ot tho nickel envelope which enable en-able the lead to shorten and at tho rama time inuihroom The accuracy of flight wat tested against the cylln-dro-conoldal bullet and on firing from n 12-urd ranee, tho ordinary bullet pasted straight through a 4-Inch brich target, while the now bullet penetrated pen-etrated an Inch ami a half It completely com-pletely thattcrrd large bones, and waa then tried on a piece of beet a foot In diameter The ordinary Mauler bullet bul-let passed straight through the flesh, but the new one was urretted six Inches from tho point of Impact Ono curious effect that It produced was that i It made a holo at tha ilolnt of entrance tin co times bigger than the surfaco of tho Hat note of tho lead, and In this rnpect It wat at effective as the man-stopping man-stopping bullet now In ma In tho Ilrlt-Ith Ilrlt-Ith arm) Considering the vast difference differ-ence In weight and alio of tho projectiles, projec-tiles, the deitructlto power ot tho new bullet wus rather remarkable. Vailoua klnda of bullets wcro utcd from the Mauicr weapon and tha present tervlco revolver, and tho opinion ot military nnd sporting authorities was that the new bullet Is a decided "Improvement" on the ordinary projectile. Ittrint Invention!. To add to the comfort of bicycling a spring attachment has been patented, which Is Inserted In tho rear forks.wlth a central rod In each fork engaging tha hub connection, the springs holding tho rods down and lessening the shock and Jar to the rider Vegetables can bo readily sliced or maahed bj a newly designed cutter, 1 bating a hopper resting over a set ot 9 knives carried b a base, with a lover 1 mounted on ono side of tho base, to I depress a plunir In th hopper and B force the vegetable between the out- 1 era. .4 In a newly ptntd system of gear- U Ing for chain! bicycles tbs crank J shaft carries a plain gear wheel.whlch jl drive a amallar whl, carried by n 11 'ahafe. below th crank banger, a pair 'l! of short cranka be.nj mounted on the n second shall to drive rods connecting f with cranks on the rear hub 11 For use in cold weather, when the y lianas get numb a new driving mitten H has a metal bar pivoted In the palm, D with a slotted guide covering the loos end ot the bar to draw It elos to the palm when pushed toward the fingers, causing It to grip the rein with a ram action and allow the fingers to relax their hold |