Show SCIENTIFIC MISCELLANY r In II the heating system of ot the I in Upper It Is I sent pent through pipes more than It a mile and a tt half hult to the coils treating heating water inter boilers holler that supply cupply heat to thirty pa ln pavilions tint and six buildings Steam entering the conduit nt tit des tie let C e was waK found to have hlo n a 1 temperature of 15 l Z deg on the tine coils colls rho Tho conduits have hue IL a L novel noel Insulating cover coer coverIng Ing lug of charred silk sill threads and they the theare are 1110 arranged In III a Il concrete tunnel hint hav having hlL lug lag walls lined hided with asphalt Electric signals give gle communication with tho the holler bollar house Ordinary medicine droppers tiers ate ae pro pronounced pronounced dangerous by hy a 1 German ph PhY Ih who that tho the euime same liquid may yield three times lines ns nil largo large a 1 drop hero from one ono dropper OH its from trum another Old age ace o c according to ta view levy Is I allied to atrophy and tutu U Is I a 1 this oils oi ou e resulting from coin poisons produced by b intestinal microbes the th changes chunges In tissue mud and lint bone hone to li ing similar to tn those thoro i ion horn certain lIIl ol poisons and ills 11 ruse tu e bacteria The longevity of oC birds I ld attributed to la of uny largo Intestine The rite toxins secreted by h tho the intestinal parasites sometimes destroy tho the red ted blood cells cello sometimes poison the nervous centers center nurl sometimes Muse cause ulceration of or tho the Intestinal nu cons ous membrane flue Tho lactic acid lust lUll particularly a f variety of aC ferment found In ht Is III the thc special too of ot tho the Intestinal germs A preparation of ut motif milk Is 11 largely litre ly consumed by the who aro ure famed for tut their long life and It Is III urged ur that this milk mill preparation a t Ion IIII Its Ill lactic ferment be h l m e extensively used use t l In l 11 medi medicine dl clue cine They are IN specially valuable In ht i tl lell la fetid teUt diary diarrhoeas hOt IIII diabetes cancer and tuberculosis losis I To ro make the th taking of ot anesthetics agreeable Dr DrI 1 t T 1 islen n u I 1 i per cent cant vapor of oC cologne or 01 whisky ky for tor 01 two or Ill three minutes gradually changing clanging to vapor of ot Io form or nr of ot chloroform std and ether ethol On the beginning of ot anesthesia tn III about six nix minutes he substitute water wl tor nt at de tie degrees grees groes V F tot for the thue cologne In Ids his third battle amid passage on this gives give his hiso o vapor Mood blood temperature The fie fh lessens risk while It fur further further ther reduces re tho thu aftereffects In all persons tho the strength of oC the left hand IH is found by Irot Caster u n French FrlIch physiologist 11 1 to toh he hO h about of that of aC tho the right hand hant Quite curiously the thc movement move movement ment of or Ill turning mating the palm pain upwind upward by hy rotating time the forearm In Is more mare powerful titan than the tho opposite apposite pro nation or turning th the down by outward rotation The absurdity of ot the widespread t no notion nOtion tion lion that the fare face of ot a II murderer may any maybe he be sometimes photographed on the tho eyes of his bin dead victim hUll has been beon pointed out ant by h Dr G 0 U I Johnson nn nil English physician The belief seems to tu be based basell on nn experiments by the lute late Prof Kuehne of lit Heidelberg rg who with great greut rule cure and timid succeeded in get sot getting ting ling u a picture of oC a n window on un tho the eye eyo of oC a IL rabbit and In fixing It I t In ht alum so solution lution The rhe detective who would show shown n it murderer In III n tho the dead mans man eyes eye must mUI have haye every ono one of oC these the e conditions tilled The Tho victim must he kept Im hn movable In ha a II dentists chair his 1118 eye eyelids eyelids eyelids lids held apart and ant the pupil dilated with a 1 drug The Tho murderer also must mum mumbo bo he held motionless nt lit th the i proper dis distance distance tance tanco and In ht strong light during the en ell entire entire tire 10 minutes needed for Ill exposure a 1 suitable spectacle lens must throw u n sharp Image Imago upon tho lie victims retina anti at lit tho the instant of ot complete exposure the eye eyo must bo he removed In light cut In two and alILI the tho hack buck halt half placed pili cell In alum ilium water U It even eve II these conditions should yield n 1 recognizable portrait It would bo be not nat more inure than an at eighth of at an au Inch long and would promptly fade talle If IC light were used 1 to en or enlarge large largo It IL of oC our homes hOllies through the paints employed em 11 Is s a 1 new nel field of 0 Investigation that promises useful 10 ro suits stilts A number of ot experimenters havu shown n that paints have n IL distinct germ killing effect rind ond that this varies great greal greatly ly the lie color and character of 01 the thae materials used In some cone eases cases powerful paw disease dl ase microbes laid upon tho thu paint were destroyed within 24 Z 1 hours the he causes of oC the action netlon Dr DI DrA DIA A 1 Cartez n f French I physiologist hinds that thin the materials aro ure III more of or lest lal poisonous but hut that much depends upon the degree of or dryness of oC the tiro layer col color colar color or ar Illumination ventilation and lint Hy Iny It of oC the thc coat Graphology the science of ot estimating personality p from train the tho handwriting Is la I proving an un aid mild to tho the physician French medical men nten have hao found that epilepsy hysteria h other othol nervous have vo characteristic effects on Oil the writ writIng writing Ing In which In III certain cn cases cs may mY even een be bethe bethe the tho only means of ot detecting disease e Bronze or metallic powders are arc produced pro produced by b M I by a I novel noel method that hits hns been Inen patented In Trance France The rho melted metal or 01 alloy Is rut run through n IL slot Into a n box or 01 cylinder in hit which a f shaft with paddles Is III rapidly revolved or Ir Into a chamber Into which compressed air Is suitably Injected Thu Tho violent movement of oC the air all con cot converts convert verts vert the tho metallic rain Into thin leaves loaves by the tho time It The fie thin leaves stay may bo be reduced to powder by betting grinding or other means Neu Neutral Neutral eU trill gases Jas such as its n a 1 mixture re of ut nitrogen nitro nitrogen gen gell cud carbonic acid may bo he used to avoid tho the oxidizing action of ot the theair theall theair air all An All electric generator to be ho driven by bythe 1 bythe the draught of n II locomotive loco matio Is III n II curl curi curious out ous recent Invention rho Tho entire ap nil apparatus comprises es a n tau fan all motor placed In the Tile smokestack an Oil electric gen Ien generator generator anti auxiliary Rues flue near the bottom of ot the holler Time Tho theory Is In that under certain conditions the tho th draught from trum the will sup suit supply ply III the fun fan all with considerable power This will operate the thc generator 1 cause an al electric current to heat the tho auxiliary aux auxiliary tubes arid and thus deliver tho the ex ox excess cess cou of oC energy enell of tho the exhaust to heat hent the tho water In la the tho dead deall space of o tho boner boiler The fie production of o liquid air Is III thus outlined Air Ir is h compressed to ta lOO 1200 to 1500 1600 00 pounds per Inch passed Into receptacles where hero It Is III treed reed from moisture amid other then Into litto expansion chambers and through long colls coils of af pipe It becomes Intense Intensely l lh ly h cold colt reaching finally 31 12 degrees below helow zero zoro nt lit which point It I becomes liquid The liquid Is drawn oft off or into Inta Insulated vessels and anti keeps for or days gradually lessening until It Is nil 1111 evaporated evaporated orated Convincing evidence el of o tho Iho relative durability of o posts IJO ts set sc In natural lias I tion anti and those thoRe Inverted has been given by hy Andrew Whiton an nu American me une chanie Posts set nut In Connecticut In both positions were carefully marked and after utter nine nillo years tho tiro Inverted ones were found fount to bo Ito practically sound Boun while others were much decayed A novel means of propelling boats has hall been devised in III Europe bv by h A 1 Farhat Far cot hat of at the tho Bucket factory It H consists of a I framework of 01 steel tubing sup SUII supporting porting a 1 Bucket vertical motor of at three cud and horsepower with electric Ignition the tho motor driving two paddie paddlewheels wheels with vertical blades The and motor moe are arc fixed nt sit fl t tho the stern of uC the boat hoat TheY Ihl are arc mounted on nn u a I pivot making it tt practicable pt to steer the boat haat In III an any allY dU dl 11 lection and giving 1 facilities for or get Iel getting ting Ung at al II t tho the machines machinery for far oiling and repair |