The Optical Magic Lantern Journal (February 1893)

THE OPTICAL MAGIC LANTERN — JOURNAL AND PHOTOGRAPHIC ENLARGER. EDITED BY J. HAY TAYLOR. Entered at LStationers’ Hall! Vol. 4. —-No. 45.5 FEB. i 1893. Price One Penny. PAGE The Practical Management of Tripie Lantern.. as ce AB: A Simple Method of “Coating Metas with a Dead Black |. |. 98 The Lanternists Den... .. ‘i . der sux BE The Royal Institution ee wea ML: gk “ek Md, SA ae, ne, 20 At One o’clock in the Morning He HES bis SS ke ee aa ase (OB New Apparatus .. . as ee ea ee er ee | How to Estimate Oxygen el. <8 wa R's, Mac aie: Ue 23D How to Get, Please, and Retainan Audience .. 0. 0. we 32 The Lantern of the Future, No.3. ea Se wre es, OS. Mr. W. I. Chadwick on Lantern Experiments . ee ee eee 2 Making and Finishing Lantern Slides... .. 2. 2. ek we ae 7 Correspondence— Slides to Loan by the Brechin pease vnee Association .. 38 Screen atan Angle to Lantern .. -» 38 Film Lantern Slides Ob. GS ge: hep otie Ga ae a ee a UD) Warm Saturators.., 22 a6 ce ie se as aa ae 3a ew (BD) Reply to Mr. Fleteher : 39 Conveyance of Compressed Gas Cylinders” 40 Situation in United States Be. oe ee. ee a) BO Notesand Queries... 6.0.6. 6. ce ce ee ee ce ee ee ee 40 Notices. Tue Optical Magic Lantern Journal and Photographic Enlarger is issued on the lst of every month, price One Penny, and may be obtained from all Newsvendors, Railway News Stalls, Photographic Dealers, or from the Publishers, at the following rates, post free :— Continental. United States. 12 months .. 1/6 2/.. 2. 60 cents. Single copies... -/1$ -/2 <,. Oe Advertisements (Scale of Charges), displayed i £ s.d. Front and back pages, by arrangement. Ordinary page (whole).. 3.0 0 -¢ » (half) 11 0 ‘8 » (quarter) 100 a » (eighth) 10 0 o » perl inchin column.. 6 0 3 0 s + 3 Special ‘quotations for a series. Excgance Column, General Wants, &c. (not Trade) — First 20 words, 6d.; and for every 3 additional words, 1d. ADVERTISEMENTS must reach the office not later than the 24th of each month. All cheques and postal orders to be made payable to Taylor Brothers. EDITORIAL communications must be addressed, J. Hay Taytor. Advertisements and business communications to Taylor Brothers, 56, Chancery Lane, London, W.C. American Agents :—The International News Co., 83 and 85, Duane Street, New York City. NOTICE. Many CorresponpENTS STILL FORWARD THEIR CoMMUNICATIONS TO THE OLD AppREss. WILL THEY PLEASE NOTE THAT Oun ADDRESS IS NOW 56, CHANCERY LANE, LONDON, W.C. Notes. IMMEDIATELY after a flash-light picture had been taken of the members of the London and Provincial Association, by means of Mr. J. G. Hudson’s new lamp, on 12th ult.,a policeman’s whistle was suddenly heard, and within a few minutes a fire-escape, engines, and the usual crowd accompanying such, brought up below the open window from which the smoke from the magnesium was escaping. For a few minutes there was great excitement outside; but it gradually simmered down when the cause of the bright light and smoke was explained. nt aE ae SprEeauinGa of fires; a house in a well-known town in the North-west of England recently took fire; in oue of the rooms was a fully charged cylinder of oxygen, which exploded by the action of the heat. Parts of the cylinder were afterwards picked up in an adjoining street. a * a Ir may not be generally known that cylinders are slightly larger when filled with compressed gas than when empty, and instances have been known of a charged cylinder refusing to go into a box which fitted it accurately when empty. * * * A WHOLE chapter of accidents happened early last month at a well-known scientific institution in London. A scientific lecture was announced and the operator was lighting up his lantern, when the 43in. condenser cracked. A messenger was at once dispatched for another, but one of 4in. diameter and of unsuitable focus was brought