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Show SCIENTiPIO TOPICS OUftriENT NOTES OF DISCOVERY DISCOV-ERY AND INVENTION. The IlnuUorloa of I He Homitiod O-' i All About tho lllaoaa Knowis M "Ultra- Now Toy or Ilia aty lutoulton for tlolfora. Ufa's Ilrailgorlrs. An "honor man" at Harvard n year or two ago summed up his college life a "a study of the rudiment of a doien kinds of knowledge. When I began to form theee alphabet Into sentence, college life was over." Men and women wo-men who have won reputation by good work In the world have given much the same summary of their live. "Any man " say Iloudlnot. "may bo glad. If out of all hi work a half-doton brief sentence last for a generation 6r to. The rest of hi time In the world went to fit him to speak thoeo sentences" fleorge Kllot. In a letter to a friend, stated that the five book by which she I known boro no proportion to ths enormous amount of anonymous writing writ-ing by which she simply earned her livelihood An eminent American surgeon sur-geon In an address to n medical school said, "Very few surrcntful men can expect to perform moro than one or two great operations In the course of a long practice Tho bulk of work ought to be a training for these operation" opera-tion" Honest. Intelligent lad often set out In llfo with tho resolve to add something to the hnpplnes or wisdom wis-dom of the world Old age come and they aro forced lo feel that they have dono no work that la recognised, or, so far aa they can see. that haa been of largo benefit to their generation. Their labor haa been git en to support Wolf Wo-lf any readers, old or young, of these line are Inclined to take this disheartening dis-heartening view of their work, they hould read MorrcU'i account of bis Journey through Upper Canada. "Our way lay acres small lake and through long stretches of foret. We had to carry the ranoe over tho land In order or-der to ernes ths water, nnd so heavy were they that I grumbled much at having to toll hard for two day In order or-der to make progreea on the third, until un-til I remembered that the trudging oniler the lotd brought m to my Journey' Jour-ney' end aa much a tho floating on tho water" There aro a good many "carries" In each human life, day and year of heaty labor which go to earn the mean to live Hut If our farea aro turned toward homo, every tteo tinder tho burden brlnga us surely near-er near-er to It. Arliona'a I'olrMotl roroala. Tho eccretary of the Interior la considering con-sidering a proposition to mako a government gov-ernment reservation of Hie petrified forest In Arla.na. It Is said that !' wonderful -collection of alllclfled tie trunk of which tho forest consists I being rapidly despoiled for commrrttal purposes. The petrified fotest ll In Apache county near ltolbrook. Not only stumps and roots, but entire tree trunks of great alse are found converted convert-ed Into hard agate, preserving the form of every cell and fiber. Somo ol tho sections, cut across the trunk, ars four feet In diameter, so that polished tP for tablea are made out of a single piece. Theso exhibit. In the moil exquisite ex-quisite manner, the grain ol tho original origin-al wood, beautified by a brilliant display dis-play of Interbltndtng colore. A company com-pany has been formed to mine the forest for-est for atone to be used In architectural nnd decorative work, and the only way to save this wonderful natural curiosity, curios-ity, which, as far as known, has no equal In tho world, la said to It by turning It Into a foreat reserve, Tor the (loir I'nlhoilaat. Kvcry one knows that a "caddie" Is an Indispensable adjunct of the links, but very often the small boy to serve In till rapacity If not available, particularly par-ticularly when one I enjoying tin delights de-lights of golf on an Improvised course, when nay In summer or In the country. coun-try. When tho genulno article li not to be had, however, the golf enthusiast enthusi-ast have to content themselve with an automaton caddie. Tills I a device de-vice which, when tho lower end I placed on tho ground, oprna out automatically au-tomatically and fold up when It Is lifted for carrying. The contrivance la very light and I provided with n bag to hold ball and a generous allowance of ipaco for the sundry stick required. A sling can be used for carrying tho automatic caddlo when a boy Is employed. em-ployed. Illtoo. This most distressing eruption, known medically aa urticaria, and popularly pop-ularly also aa nettle-rash, hardly needa a description, for there Is scarcely any one who has not at some time In hi life suffered from It more or less, It consist In the sudden appearanro of one or more puffy awelllng on tho skin, hard, and of a whitish or pinkish pink-ish color, which Itcb and burn and atlng Intolerably. These wheals may be no larger round than a pea, or they may bo of the all of a silver dollar or even larger They usually last only a few hours or a tew mlnates. but may persist for a day or nor. Fnr-o-'me they keep coming out In succeeelve crops on lbs same er different pari of the body. The wheal generally disappear a rarldly a they tome, nnd with lh(tn dtasppoar every sign of the eruption, ept perhan. the mark of the fin-(er fin-(er halls which the sufferer has dug lato hi akin In the vain effort lo qutert toe Itching The ci'ite of Me are numerous, vl in the greater number of eatea tbey are referable to some error In diet Seoje imiple ran not et shell fish of any kind without paying for their In alscreiion by an attack of urticaria, ethers are similarly affected by eomo Wait of berrlea or nut, or by certain drug. Irritation of the skin by modi Hot! applications, such a arnica or Iodine bv poisons, such aa that of the nettle or of certain Insect, or by ths Baden luthlng. ns well a the action ef a very low temperature, way also produce an eruption of hive. It Is possible to dlwoMT tho cause and to remove It, (he treatment ot nrtlraiM becomes a or) simple matter mat-ter hlle the eruption lasts the Helling Hell-ing ami stinging may be relieved some-hst some-hst by bathing the parts In a sttong solution of bicarbonate of soda, bornx, housrtinld ammonia, alcohol, or vinegar vine-gar and water A useful application Is carbolic acll. one part In thirty paits of water, with a Utile glycerine Sometime an ointment oint-ment containing carbolic acid borax or boraele acid, tine or chloroform Is very grateful. Now Toy fur the Naty. Here Is a toy for tho navy one which some of the navy's men would enjoy playing with In tho neighborhood ol a Spanish flotilla. It Is n Dregge-Sshroeder Dregge-Sshroeder six-pound rifle It can lire thirty-three shot a minute and It projectllo can pierce three Inche of stfel at a distance of thrco mile, it Is tho new gun which has Just been placed on the revenue cutter (Ireehnm. It will be In chargo of Gunner Klnn, who ha liern on the old cutter Andrew Jackson nnd on tlio Oreaham for twenty-six year. The (ircshnm ha only ono slx-poundcr rifle, but she could rssily Increaso her armament by four or flvo mure She baa a speed ol tenly-ono miles an hour. Hut bf chief weapon of defenso Is her torpedo lube. A I'rojrrlllo'a (lain of Kpood. Itecent experiments with Improved Instruments for measuring the velocity of projectile bat shown. Ihaulbs speed goes en Increasing alter the missile mis-sile has left the mouth of tho cannon Laving the muisle with a velocity of about 1,411 feet In a second, a projectllo projec-tllo ha been obsertcd to Increaso Its speed to about 1.C89 feet per second within the first six feet It Is only after having traveled about twenty-lira twenty-lira yards that the projectile' velocity become reduced to the speed that It bad on leaving the muzile. This Is ascribed to tbe Impulso of the expanding expand-ing gas being felt for some distance beyond tho cannon'a mouth. ! It a roruilna auo. Htmarkablo photographs of tbe "ring nebula" In tbo constellation Lyra bava recently been made at the Meudon observatory, ob-servatory, near Paris, These pictures show a great deal of diffused nebulous matter Inside tho ring, but none outside, out-side, wbllo In tho center appears ths Imago of a star. Tbliatar can also b seen with a telescope. Hut the drawings draw-ings of the ring nebula made by Her-schel Her-schel In 1633, by Lord Itoise In 18U, and by Trouvelot In 1S73, show no star there, and Monsieur llabourdan think this may Indicate that change ire going go-ing on In the nebula; such, for Instance a the formation ot a solar Lody within with-in the ring. IIManro or the Dog Mar. Dr. David am, whose measures ot tho parallaxes of the stars, by mean of which their distances can be calculated, calcu-lated, aro among tho most accurate known, ha recently deduced anew the results of hi observation of Slilui. tbo dog star, which Is tho brightest star in the heavens He thinks wo may now regard It parallax a satisfactorily determined de-termined at 0.37 of a second of arc This make the distance of Slrlua In miles 51,000.000.000 000. In olber word the dog star I nearly fire hundred hun-dred nnd fifty thousand times farther from tbe earth than the sun Is, A Curloua flower Mrcalh. Mis Ulliabetb Taylor, writing la Popular Science New of th plant and flower of Iceland, describe a curloua cu-rloua sight which she witnessed In the lava flelda near Ileykjavlck. Noticing Notic-ing wreaths of steam Issuing from the summit of A small volcano, she climbed climb-ed up there, and found a band abeut two feet wide, of beautiful plants, bearing bear-ing largo flowers, encircling tbe Inter lor line ot the crater. The atcom warmed tho flower and the rim ol rock protected them from tbe cold wind without What I-ocmU Will Not llat. It I said that the castor oil plant 1 abhorred by nearly all member of th animal world; that mole may bo driven from a lawn by planting a few-castor few-castor beans In It, and that neither the terrible "army worm," nor tbe all-destroying locust will cat It. |