Newton's lantern slide catalogue: section 2 (circa 1920)

43, Museum Street, London, W.C.i 1U7 LOW-H1LGER AUDIOMETER RECORDS. Plain Slides, 2s. each. S Record of the 8 Cardinal Velvet by Singing. 2. fl Sound Records of « V»lin. 1. 7 Sound Records of s Violin. 2 . 8 Sound Record* of * 'Cello. 8 Sound Records of an Organ Reed. 10 Sound Record* of a Mouth Organ. 11 Sound Record* of an Ocarina. 12 Sound Record* of a Comet. 13 Sound Record* of a Whistle. 14 Record of th« word* " Adam Hdger” as spoken by a male voice. RV SOUND WAVES. ’ • .Professor R. W. Wood, of John Hopldn's University, U.8.A., has succeeded in photo- graphing waves of sound, and has carried hla investigations so far that be has photo- graphed sound waves In various successive phases during reflection from different £ shaped surfaces and during refraction when passing through various media. , lantern Slides made from his negatives are published only by Newton & Co. Plain Photographic Slides, 2s. 6 i. each. Copies of Professor Wood's Paper, 9 d. each 1 Bound shadow and diffraction 2 Formation of a wave train, vis leflectlon from step* 8 Wave entering hemisphere mirror, Cusp* trace the • au>tlo 8 Spherical wave starting at foous of oonoava spherical mirror 7 Reflection in elliptiral mirror B TranstOnnution of spherical into plane wave by reflection from paral>o!ia mirror 9 Transformation of spherical Into plane wave by C.O, lens lit Reflection of-wave from corrugated mrfaoe showing secondary wa volet* {• iffraotlon Grating) 11 Passage of wave through grating showing secon- dary wavvlets 12 Huygen’s Principal Passage of wave through two slits showing formation of complete secondary waves IB Refraction in tank C O, 14 Re fra Hon In tank of Carbonic Acid under oblique Incidence IB Refraction by Carbolic Acid Prism lfl Refraction dj Hydrogen Pri»m WG CHLADNl'S SAND FIGURES. A series of 11 direct Photographs of sand figures, obtained by bowing a Chladni’s Plate, by Professor Philip E. Belos, Royal College of Science, Dublin. Plain Slides, 2s. each. For other Slides on Sound see pages 108 & 117. GANOT’S PHYSICS. yThese slide* are all made from the illustrations in “ Ganot's Physics ” (Ninth Edition) by kind permission of Messrs. Longman In some cases 2 or 3 i f the figures are put on one elide where they all refer to or bear on the same subject to decrease the expense. Plain Photographs , 2s. each. On Matter. Force and, Motion. 1 Fig. 1 Vender 2 „ 2 Sphammeter 8 „ 8 Demonstration of Sen- sible Pores 4 n . 8 Cohesion of Liquids B H 12 Parallelogram of For- 14 Fig. 36 Diagram of Centrifu- gal and Centripetal . Foroa 15 „ 4b, 41 Diagrams of 2 Reo- tanguiar Motions 16 „ 42 Resultant Figure when the Periods are 3:9 17 |, IB Compound Pendulum 8 ,, IB Simple Laver 7 n 90,91.22 Simple Pulley*, Block and Tackle ■ „ 21, 24, Wheel and Axle , and Toothed Wheals B n 25 Inclined Plane 10 „ 97 Wedge 11 „ 96, 29,80 The Principle of the Screw 19 „ 21 Reel*tanoe to Motion in a Fluid Medium 18 it 84 Motion of Projectile* it Figure traced by Compound Peudulums 46 Diagram of Bimple Harmonli Motion 66 Jolly’s Balaooe for de- termining the ocn- stsntof Gravity. SB Bodies falling In a Vao- uum 60 Water Hammer 61 Attwood's Machine 62, 63 Morin's Apparatus 61, 66 Kalita revenlbia Pendulum 66 Pendulum with Es- On Gravitation and Mole- cular Attraction. 70,71 Elasticity of Flex. I) Fig. 47, 48, Centre of Gravity. 1 „ 62 Stable, unstable, and Neutral Equilibrium 1 „ 84, 66, 66 Dalioaoy ol B»- lanoe, _j „ _ m