THE New York Electrical Show, this ye'tr, was used to open the new Grand Oentr.J Palace, located on Lexington Avenue, between 46th and 47th streets. This handsome structure was brilliant with myriads of electric lights, which were reflected with great brilliancy by the white walls of the interior. At the .top of the building on the outside the arched gallery was illuminated with mercury vapor lamps, the bluish light of which gave a soft, delicate effect when viewed from a distance in the light of the full hunter's moon. Several of the large electric companies have excellent exhibits of all kinds of household electrical apparatus. Along the south side of the building there is a row of rooms illustrating the equipment of a modern house from kitchen to bedroom. In the former room there is an electrical washer, a churn, a chopping machine, and a full equipment of cooking utensils, while in the bedroom there is an electric massage instrument, a miniature hair-drying fan, an electrically-operated sewing machine, etc. The company also has a complete electrically-operated printing plant along the west side of the building. A small paper is printed every day, giving the latest news, many of the despatches being received by wireless. A particularly interesting display was the historical exhibit in the gallery. This consisted of old books dating back to the time of Franklin, and various electrical apparatus. The most interesting feature, perhaps, of this exhibit was the development of the arc lamps, from the original Brush twin-carbon lamp, to the flaming-arc lamp of the present, day. Storage batteries and electric automobiles occupy a considerable part of the floor space, there being exhibits by the Edison, Exide, and Gould storage battery firms, as well as electric automobiles of most of the leading makes. The recent record of 110.9 miles made on the Ocean Boulevard between Brooklyn and Coney Island by a Fritchle electric car carrying four people, which was made with a lead battery, has been exceeded under actual touring conditions by the Edison battery, which, about a year ago, received a thorough testing under Edison's supervision, in pleasure vehicles. Some time after, a run of 244% miles at the rate of 12 miles an hour, was made with 'a Baker electric auto on city streets in Cleveland, with a 40-cell 225-ampere-hour Edison battery.' This is the record for tests of the kind just mentioned, while for touring purposes, from 125 to 150 miles, it is claimed, can be made on one charge. Plates taken from a cell which has been in continuous use in delivery service in New York city for two and one-third years, and which has run a delivery wagon 25,000 miles, were exhibited and showed no depreciation. The capacity of these- cells is said to have risen from 225 to 300 ampere hours after this long-continued use. In addition to this increase of capacity with use, the Edison battery has the advantage that it can b-E) charged whenever convenient, and is not ruined if left standing in a discharged condition. The Electric Storage Battery Company also exhibited vehicles and stationary cells. A barber shop equipped with all the latest electrical appliances, was located in the middle of the main floor, while on a raised platform above there was exhibited a novel combined electric piano and violin orchestra. Three violins were mounted upside down in a circle above the piano, and were played by means of a revolving ring, rotated at various speeds in producing the different notes. Whenever a note was struck on a violin, the instrument was moved about its neck as a pivot until the strings contacted with the ring. Meanwhile, electrically-operated levers fingered the strings. The music produced by this orchestra was excellent nd the amount of expression secured was surprising. As a whole,, the show this year is made-up of small apparatus. There are none-of the big motors and generating sets that have sometimes been exhibited when t ' the show was held in Madison Square i Makes and burns its own gas. Pure white 500 candle power light, more brilliant than electricity or acetylene, and cheaper than kerosene. Casts no shadow. Costs two cents per week per lamp. No dirtj no grease, no odor. Used m every civilized country on earth. Over 200 styles. Every lamp . warranted. Agents wanted. Write for catalog. THE BEST LIGHT CO. 87 E. 5th St., Canton, 0. Why notenjoy absolute comfort in your automobile over all kinds of roads t You can accomplish this if your automobile is equipped with the The New 1912 FLENTJE Automatic Hydraulic Jounce &: Recoil Preventers In a class by itself “BEST IN '11IE WORLD" In a short time you will save the cost of the preventers on tires and springs and engine and body of your car. Try a set on thirty days' free trial and three years' guarantee. and be convinced of the correctness of my claims. S5000 a side to any shock absorber manufacturer to disprove that “ The Flentje “ is the best in the world. For for further particulars, apply to ERNST FLENTJE, 1643 Cambridge St., Cambridge, Mass. New York Branch: 1926 B'way, cot. 64 h St., Room 400 N. Y. City Thekind of true dories young folks love, and parents approve. Stories of Useful Inventions By S. E. FORMAN Profitable and entertaining stories of the beginnings of everyday things—the match, stove, lamp, plow, etc.—tales which make the most of all the history and humanity wrapped up in these inventions. A regular p/clare book oj asefUl in'lJentions, I00. $1.00 net, postage 11 cents PuMisAed by THE CENTURY CO., New York A Fascinating Booklet: “WAYS AND MEANS IN PHOTOGRAPHY" Full of helpful hints.—Write Burroughs Wellcome&Co. 85, West 33rd St., New York, or 101, Coristine Building, Montreal SPENCERIAN STEEL PENS IN EVERY STYLE FOR EVERY HANDWRITING Sample card of 12 SPENCERIAN different pens and . 2goodpenholderB £ sent for 10 eta. PEN CO., 349 Broadway New York. AIRCRAFT THE WORLD'S GREAT FLYING MAGAZINE contains a complete review of everything taking place throughout the entire world in aeronautics, It contains the most beautiful illustrations from every quarter of the globe. It gives complete Records and Statistics of the movement from its inception. Its construction work is accurate beyond question. It describes minutely the newest types of flyers. It contains articles written by the most famous men connected with the Science of aerial flight. At the present time all progressive men are studying this great new art of flying. Aircraft is generally recognized by the leading authorities on the subject as being the organ of the movement itself. IT IS PUBUSHED MONTHLY. Its subscription price is $1.50 per year or $1.00 for eight months. The Lawson Publishing Co. 37-39 Eat 28th Street, New York, N. Y. Wood-Working machinery For ripping, cross cutting mitering, grooving, boring scroll-sawing, eoVe moulding, mortising; for working wood in any manner. Send for Catalogue A. SENECA FALLS MFG. CO. 695 Water Street Seneca Falls. N. Y , U. S. A. SEBASTIAN LATHES 9 to IS Inch Swing High Quality Low Prices Catalog Free THE SEBASTIAN LATHE CO 120 Culvert St., Cincinnati, O. For Gunsmiths, Tool Makers, Experimental&Repair Work, etc. From 9-in. to 13-in. swing. Arranged for Steam or Foot Power, Velocipede or Stand-up Treadle. W. F.&J. Barnes Co. Established 1872. 1999 Ruby Street Rockford, III. Practical PROTRACTOR for FIELD ENGINEERS ' Especially designed for plotting drawings requiring lines to radiate from the center of a working point _______to any degree point uesired. When not in use needle is tele ped in hub. Lies fiat on paper, 6 in. bbide, weight 3oz. ONLY. Positively accurate . Indis-to field engineers and draftsmen. Price '3.00. 274 page catalog, No. THE L. S. STARReTt CO., Athol, Ma..., U. S. A. THE BEST EQUIPPED SHOP For Mechanical and Electrical Manufacturing Special Machinery, Jigs, Tools, Repairs, Experimental Devices e.lgntiij? and Commercializing a Specialty THE UNIVERSAL TELEGRAPHIC COMPANY ' Sii«e»« ,.(” Th” Rowland TolosrnphU Co. BAWIHIORK, JID. FREE SAMPLE Goes With First Letter Something new. Every firm wants it. Orders $1.00 to $100. Big demand everywhere. Nice pleasant business. Write at once. METALLIC SIGN CO., 438 N. Clark, Chicago WANTrn To manufacture METAL £_§,-• W J\IV 1 VAJ SPECIALTIES, 20 year. experience in making Dies. Tools and Specml Machinery. Expert work. Complete equipment. NATIONAL STAMPING&ELECTRIC WORKS Dept. 2. 412 So.Clinton Street, - Chicago. III. Patented Articles and Metal Specialties MANUFACTURED BY CONTRACT Stamping Dies, Metal Stampings and Screw Machine Work 567 W. La keSt. CHICAGO H. CARSTENS MFG. CO., NOVELTIES 8: PATENTED ARTICLES MANUFACTURED BY CONTRACT. PUNCHING DIES. SPECIAL MACHINERY. E.KONIGSLOW STAMPING &TOOL WORKS, CLEVELAND, 0. Models&Experimental Work INVENTIONS DEVELOPED SPECIAL MACHINERY ... E.V. BAILLARD CO., 24 Frankfort St.,N.Y. M.»*iai(.»s.tii..i ner of Special Machinery, Metal HianUiaClUring Specialties, patented Devices, Dies and Tools, Stampings, Screw Machine Work. Model and Experimental Work. M. P. SCHELL MFG. CO. 509-511 Howard St. - - - - San Francisco, Cal. INVENTORY We build models, do 111 V Lill 1 UlW experimental w o r k, light manufacturing dies and tools. G. SCHWARZ&CO., 123 Liberty St., N.Y. Manufacturers of Metal Specialties, Stampings, Dies and Tools. - Thirty Power Presses at your service. Hoeft&Company, inc. cgc:* 141-143-145 West Michigan Street, corner La Salle Avenue BOYS DON'T DROWN your tools in cheap oil. A few drops of “3-in-One” makes brace and bit, plane, saws, all tools work perfectly-keeps them bright and clean, free from rust. Write to 3-IN-ONE OIL CO., 42 AZB, Broadway, New York City, for generous sample bottle—FREE. SMALL GENERATORS FOR — ISOLATED PLANTS Special 42 volt and 77 volt dynamos in any desired ampere capacities for charging storage batteries. etc. Crocker-Wheeler Company Ampere, N. J. Branches Principal Cities "RED DEVIL" NO BROKEN BLADES WITH THIS HACK SAW FRAME No. 1045 (Same make as the famous “Red Devil “ glass cutters) The rigidity of the frame and the properly fashioned hand grip insures absolute control — adjustable from 8” to 12". If your dealer hasn't it, send us $1.40 and his name. It's just one of many “Red Devil “ Tools. SMITH&HEMENWAY CO. 150 Chambers Street New York City Garden. The myriad uses of electricity in the home and office, however, have never been so well illustrated as now, ana this alone, together with the historical exhibit, makes the show interesting to laymen. The Glidden Tour and the Fair-mount Park Automobile Race MORE than fourscore automobiles started in the 1911 Glidden tour from New York city on October 14th. The route this year extends 1,456 miles from New York to Jacksonville, Florida. The trophy will be contested for by teams, the team having the best average of prompt arrivals being the winner. There are various divisions for runabouts and touring cars, besides which there are several three-wheeled motorettes and a number of trucks and baggage cars. It is expected that the 1911 tour will be the most successful of any held thus far, as the roads of the South have been greatly improved during the last few years, which should assure the motorists an 'enjoyable trip. On October 9th, there was held in Fairmount Park, Philadelphia, the automobile race for fast cars, that has been run annually for the past several years. This race was notable for the fact that there were no accidents of any sort, and yet the speed records were 'broken, principally by amateur drivers. The winner of the race was Erwin Bergdoll, in a 90-horse-power Benz. His time was 3:18: 41.35—an average of 61.25 miles an hour. He beat by 10 minutes 26.53 seconds the time of Zengel, in a Chadwick car last year. In fact, no less than six of the nine cars that finished this 202112-mile race, beat the time of the winner last year, which was 3:39: 07.88. Spencer Wishhart, in a Mercedes, secured - second place in 3:20: 11.42. He held the lead for three laps, but was finally outdistanced. Ralph Mulford, in a Lozier, obtained third place. His time was 3:21:52.78. He stood a good chance of coming in second, but was obliged to stop for gasoline and oil near the end of the race, and in so doing lost his position. Last year Mulford finished but six seconds behind the winner. Mr. Bergdoll beat the best record for one lap no less than six times, besides equaling it once during the race. The time of 7:36 for the 8.1-mile lap, made by Harround in a Marmon car last year, was reduced to 7 minutes and 28 seconds by this amateur racing driver. Several other well-known automobile racing men finished in the remaining places. Zengel, in a National, was fourth, and Disbrow, also in a National, was fifth, while Harry F. Grant, twice the winner of the Van-derbilt cup race, was sixth. A small car, the Mercer, obtained seventh place in 3:29: 45%. This race was particularly interesting from the fact that the first and second places were won by amateurs. The next big race of this kind ' will be held at Santa Monica, Cal., shortly. Repairing Old Bridges by Injecting Cement AT Hamburg there are two bridges the masonry of which was threatening to fall in ruins, being traversed by innumerable cracks of varying size. A rather remarkable process has just been made use of to rejuvenate these bridges. A number of holes were bored throughout the structure so as to give access to the interior, and cement was injected by pumps under pressure. Reports on the present condition of the two bridges thus treated are entirely favorable.—La Nature. (Enrrrapxmbrttr? [The editors are not responsible for statements made in the correspondence column. Anonymous communications cannot be conSidered, but the names of correspondents will be withheld, when S0 de-tired.] The Harvest Moon To the Editor of Scientific American: I beg to call your attention to Fig. 7, illustrating my recent article, “The Harvest Moon.” My drawing showed the illuminated hemisphere on the left. Of , course, I see how it happened, but it is misleading. Feedebic R. Honey. Hartford, Conn. Comparison of the Distance Traveled by Earth and Bell Telephone Messages The Orbit of Universal Service In one year the earth on its orbit around the sun travels 584,000,000 miles; in the same time telephone messages travel 23,600,000,000 miles over the pathways provided by the Bell system. That means that the 7,175,000,000 Bell conversations cover a distance forty times that traveled by the earth. When it is considered that each telephone connection includes replies as well as messages, the mileage of talk becomes even greater. These aggregate distances, which. exceed in their total the limits of' the Solar system, are actually confined within the boundaries of the United States. They show the progress that has been made towards universal service and the intensive intercommunication between 90,000,000 people. No such mileage of talk could be possible in such a limited area were it not that each telephone is the center of one universal system. AMERICAN TTmPHONE AND TELEGRAPH COMPANY And Associated Companies One Policy One System UmtJer.sa? SertJice BAKELITE (REG. V. S. PAT. OFF.) the new synthetic substance of many applications. Write for booklet. GENERAL BAKELITE COMPANY, 100 William St., New York, N. Y. WELL DRILLING MACHINES Over 70 sizes and sty les, lor drilling either deep or shallow wells in any kind of soil or ruck. Mounted on wheels or on sills. With engines or horse powers. Strong, simple and durable. Any mechanic can operate them easily. Send for catalog. WILLIAMS BROS., Ithaca. N. Y. Nulite Gasoline Table Lamp. A beautiful lump for homes, hotels, offices, stores, banks, cafes. Portable, safe; can be turned upside down or rolled on the floor without danger ("r affecting the light. 3OO C. P. of soft, brilliant light, one-third cent per hour. Also 'l00 different styles of lamps and systems. ACENTS — “e want town, county, and traveling salesmen. Best proposition ever offered. Sells everywhere. Wrttu for Specinl Offer. National Stamping&Electric Works 412 So. Clinton St. CHICAGO LEARN A TRADE BEY011 OWN BOSS n Work,'riiiuibing, Bricklaying, Pftint- a c e instrnction. Actualworktalee place of books. We help gracluates to good positions. Easy e materials furnished free. Write to-day fur free catalogue .1 .._ NATIONAL 60 IlHnoisStree' In use by the United States Army, Checks the muzzle blast, preventing report noise and recoil. Wonderful aid to marksmanship. Makes rifle practice possible anywhere. Attaches to any rifle. Write make, model and calibre of your rifle (giving dealer's name). We will tell you what Silencer you need, price, etc. MAXIM SILENCER, Hartford, Conn. Afff GAS! Latest Invention Standard Vacuum Gas Machine rasautomatically! Uses 97% ordinary Cheapest,safest,mosthygieni” *-- akes -------------most hygienic for lighting, heating cooking! All conveniences of city gas! Non-poisonous non-asphyxiating, inexplosive and inodorous! Machine always ready! Gas can be made forloc per 1000 cu.ft.! 25 times cheaper than acetylene! Cheaperthan kerosene lamps, electricity or city gas! Saving will pay for the machine in a few months! Agents wanted everywhere in the -United States and abroad! Machine of 25 light capacity, $125.00. GOES LIKE SIXTY SELLS LIKESIXTY* SELLS roil SIXTY "i.irilW*^GILSON ' ' *I GASOLENE "ENGINE fFor Pumping, Cream ^parators, Churns.Wash Machines, etc. FEEEJTBIAL _ Ask for catalog-all sizes SOS Pari St. Fori Washington, Wis. DON'T Bill' A GASOLINE ENGINE Until You Investigate The Temple Make. Its Great Advantages are: 1st—Lowest Fuel Cost; pays for itself in Fuel Saving. 2nd—Delivers Steadiest Power Stream. adapting it especially for operating farm machinery. 3rd—Easy on the machine it operates. 4th—Uses Gasoline. Kerosene or Gas. 5th—Perfect Lubrication. 6th—Starts Easily and Quickly, occupying minimum space. 7th—It is the King of Portable Engines. No engine has so wide a range of use. You will make a mistake If you do not write for Information. We make 1 to 5 JJ H. P. single cylinder engines; 6 to 20 H. P. two cylinder engines; 30 to 50 H. P. four cylinder engines. All heavy duty, slow speed engines. For surety of operation and low fuel cost our engines lead. Temple Puiup Co., Manufacturers. 439 West 15th St., Chicago, U. S. A. This Is our 59th year. INVENTORS' NUMBER NOVEMBER MAGAZ/NE NUMBER of the SC7EN77F/C AMER/CAN /SSUE OF NOVEMBER 18th, 1911 Although every number of the Scientific American discusses the inventions and inventors of the day, there will be published on November 18th a mid-month magazine number which will display the inventor in a new light. Articles will 'be. published which will show how much he suffers from our antiquated legal system and will explain his need of sympathetic governmental support. His foibles, too, will not escape notice. There will • be an arraignment by Mr. Melville Church of our marvelously complicated method of trying patent infringement suits. Mr. Church is one of the most eminent patent lawyers in this country, a man who has figured prominently in some of the most important patent cases that have been tried in this country. He points out what a burden is imposed by the present method of taking testimony in chambers without any Court supervision and how enormously expensive a trial may be before the infringer is successfully brought to book. We need only mention the scores of volumes of printed testimony taken during the trial involving the validity of the Selden patents, to drive home the utter absurdity of our Court procedure. The inventor who has suffered because of the slowness of our judicial machinery will read Mr. Church's article with interest and profit, for he will learn what steps are being taken to protect without impoverishing him. The great industrial corporation (the “Trust” of whom we have been hearing so much of late) has changed the aspect of invention. It now pays to invent thousands of little feeding devices, thousands of little trains of gears and levers and cams, which, fifty years ago, might not have proved so profitable. An invention that means a saving of one cent per ton in the handling of raw material becomes of industrial importance for the simple reason that the “ Trust” deals in gigantic masses. In an article entitled “The Industrial Corporation and the Inventor” this aspect of modern invention is treated. Fascinating is the story of making big fortunes out of patents on small and apparently unimportant things. Every time anybody in the United States pulls the cap off a beer bottle or a soda water bottle, he puts the fraction of a cent into the pockets of a Baltimore inventor. Elias^ Howe, who first made the sewing machine practical by placing the eye of the needle near the point, admitted that he had collected $ 1 ,-185,000 in royalties. The man who invented ingrain carpet with the threads so interwoven as to prevent wrinkling, is now better off by $4,000,000 for his thought. A government clerk named McGill found it hard to hold together many pages of thick documents. He got over the difficulty by inventing the little brass paper fasteners which we all use. He died rich. His invention made money. These are but a few of the facts taken from a striking article by Mr. William Atherton DuPuy on the big fortunes that have been made on little inventions. Perpetual motion is the inventor's Will-o'-the-Wisp. In the Inventors' number will be found an article in which the various forms of perpetual motion apparatus that have engaged the attention of dreamers for years are explained and their fallacies set forth. There is a funny side to invention as the Inventors' Number will tell you. What possible use could there be in encouraging birds to infest the farmer's grain fields by providing fence posts with birds' nests in them ? Or of table knives with mirrors in the handles to permit the users to inspect their teeth now and then ? Or of a telescopic anti-collision pilot for railway trains running in advance of the locomotive and bearing an automaton that rings a loud gong? These and even more ridiculous inventions will be described in the article on “ The Funny Side of Invention. “ In addition to these articles, there will be the usual Scientific American material—the articles on current scientific discoveries, the Department of Curiosities of Science, the Science Abstracts and the rest. Price Fifteen Cents On A// News Stands