Show POINTERS CURRENT NOTES OF ERY AND INVENTION a latest lop iron A thousand I 1 anwer tho magic links U a ge larts aror wc king and of the greit furnaces in this country are int r esting in the extreme to those who are fund of knowing the professes pro Lesses b which articles are male t one of t s 2 tons of iron ore coke anti limestone aars each day long train bring this mixture which is knon to etke workmen as burden into the 4 works the cars are brought up rn trestles and empoli d into long bins the furnace Is kept full anti burns con the gases rise slid are Tear ried off and the solid matter bradu dl solving and steadily descends when the thus left ot Is filled by the bur examination of the interior of the furnace would show a top laber tot crude with a temperature of about degrees fahrenheit k feet below thir the temperature temper iture of 1000 degrees lahren helt has becom amed the and formed car amic acid and lime beneath this there is a strata with a temperature of IW to 1700 degrees in this the iron ill reduced front the ore and Is taking up carbon below this the iron Is and tills the receptacles above ran Is the slag which escapes through a hole at the top of the hearth A the bott m of the hearth Is a narrow opening from which the cast iron IS taken A furnace Is tapped six a dar and furnishes about tons of iron daily when the furnace 14 compty abe tap hole is closed with clay when it to again filled this clay Is broken out and the melted metal at 1 11 white beat flows down through the spreading to the richt and into the smaller depressions pre for its reception these are so I 1 that the molds at the ex tafts edges fill first and thom near boe furnace are the last ones to oe com ty thomsene horse powe plant of the street railway vw york city Is building a plant I 1 will contain the most e power ever operated ast an indent plant when this Is com miles of street ballway aerated with this one of on the current from the cen tation will be by the f high potentials which ill su at de the volt distribution which has um fore been in use the building i US s be four stories high with balur and emigine room of two I 1 ill be 87 gatei tube boilers of se power each forced araug lit bel go use I 1 and stortie toe 9 thins tato Is provided eleven s condensing engines of the va I type will aub have i mul aa bt 1 capacity capi city of 6 ha se power on engines are set up in two rows wd nd with the dividing f the power house each has I 1 t connection with the thase alternating current generator genera tur A 00 olt current to tit be led to stations here the rotary and ans formers will take it up and it fit volt currents to the it seems an almost incredible tit that the greatest advaney ill power Is to be feind in the ean any conj of three of the great pes clippa boats command double the motive bat is to be found even in the manufacturing flints in th ildren 11 1 1 to carts the igo cars introduced from edg ut two years ago although E king at first firmly ea themselves the favorite per conable conveY lne for juven MS rl ca at first k for they had but ert and then we arranged to ile in ci children bac to back this anent has been in fil m doty 1 or I 1 1 n en P 0 0 smart arld by the model the picture will recognize the closed top ding top of thirty years aga not unlike the miniature gt addition of tm j small wheels tain its upright position and to be lifted over curbs st ruction is followed through oung america mill doubtless pneumatic instead of the cush here shown da pirk biby parade consists drel of these new bombina com bina its anti frelong fo elong boulevards will be the neit heir conquer con queL what to JUL oud Electric lart condenses london Engl review e crowbridge row bridge s new book what NO 6 is I 1 as follow follows the T writer ras that in spite of 0 the all U round gr regress ogress made during the lait la it thirty atari we know no lio more about the essential nature of ale electricity c triciti thai did anamin franklin I years ago the several explanation explanations offered based upon the ether or ether and nd matter associated merely substitute one unknown for another alter after all what la Is matter nhat hat la ii the ether how Is matter associated with ether to such fundamental und lund questions we e can re turn no other ans ansa answer A er than the no now f timous i ignoramus rl 1 ey male or tend to make ua us painfully conscious cons cloua ct of thi infinitude of 0 our nes nescience clence the writer of the review 11 t I 1 Is that I 1 ord kelvin must have been brooding over these provoking unknowns when be he wrote mm IM in 1892 tell me we what electric ltv 1 li aa all I 1 tell you all the rest 1 1 I ins his inability to detect lu in its primordial form need however exert no distrustful depressing effects on the mini min I 1 of the student ot of physical ghyst at I 1 et him remember that a ra ot of light Is an unexplained cheno menon vet what wonderful truths are ree revealed aled to what has been wrested rested from it b bv means ot 01 the and whit marvels il it not ever eier jay day recording on photo graphic plates la lacar Clr proof 81 tatters A new german germau i izety shutter chica moil is 1 invulnerable erable to burglars Is made on the principle of the roller shutter the strips of hardened etel steel aj of an inch la diameter placed over ON er rods or on pivots the bide side the only vulnerable emble point points are hidden in grooves and as the th tubes revolve freely the burglar a tool tools can obtain no purchase upon them thus rendering strong rooms etc absolutely sol inaccessible theater cur bains constructed on the same plan would also prove invaluable for the th preservation of life in case of ore are magic link A most rising trick la in paper cutting may be accomplished by taking a long narrow strip of paper two to lache wide by twelve long and twisting twice bringing the ends together and pasting securely previous fous to this draw a line down the center ot at the strip denning defining as the picture shows a dark and light strip when the strip Is twisted twice and pasted correctly you will have figure like number 2 NO I 1 1 4 v v N 0 2 NO 3 then take our scissors insert them in the line between the derk and light halves of the strip and cut along the line N when hen vou oil have cut clear around the strip will fall into two pieces and make the joined links as shown in no 3 to ape the principle ot of the trick will require some puzzling longst canal in the th world from tid bits the chanab irrigation canal in the northwest provinces india Is feet broad it la 1 doubtless le the largest canal in the world its main channel Is miles long while the principal branches branc bes have an aggregate length of 2000 miles and the village branches will extend when completed for an additional 4 miles apart from irrig Irrl gilon ilon the longest canal in the world Is 1 that which extends from the fronti frontier pr of 0 china to st petersburg and Is 4 miles in length another russian canal froia from astrakhan to st petersburg Is 1434 miles long both the last named canals were begun b bv peter the great the bengal canal connecting with the river ganges completed in 1854 Is miles in length and cost ea 2 sterling or 12 per mile the total length of can camis ils in india for irrigating acres Is calculated at miles the canal du midi connecting the atlantic with the mediterranean Is miles long the caledonian canal in scotland has a length of sixty miles the suez canal Is eighty eight long and the brie the ohio canal the miami and erie the manchester ship canal 35 miles A flandy rire fire if twenty pounds of common salt bait and ten pounds of sal ammo ammoniac lilac are dissolved in seven gallons of water and te mixture afterwards put into quart battles of thin glass tightly corked tho the grenades so made will ill be found to be very efficient for extinguishing email small outbreaks of fire U hen a fire occurs the must be thrown in or near the flames so as to break and thus liberate the gas contained to effect the do sired object weeds killed by Is to destroy weeds eed in a new device which can be used on an ordinary mowing machine one wire ot at te being attached to th the cutting ba ind the other grounded grou ndel through one af the wheels so that it if the weeds are cut when damp a current of el electricity enters each root toot and burna burns itts it as the top Is cut sixty years ago the first electric eat it waa was run but the first commercial line was not built until 1881 when a line near berlin was wa opened |