Illustrated Catalogue Of Magic Lanterns (after November 1889, probably 1890)

190 MCINTOSH BATTERY AND OPTICAL CO., CHICAGO, ILL., H. S. A. MECHANICS, HYDROSTATICS, &C. We desire to call special attention to the large lists of Educational and Scientific Slides, more especially those on the phenomena ol Heat, Light, Sound. Electricity, etc., etc. We do not carry all ot these In stock; yet we can supply any or all of them in less than six weeks from date of order. Many of them have to be Imported. 1 Action and Reaction 2 Measurement of force 3 Parallelogram of Forces. Diagram 4 Parallelogram of Forces. Experimental demon- stration 5 Parallelogram of Forces. The “knee joint” 6 Composition and resolu- tion of Forces 7 Parallel Forces. The Arithmetical Lever 8 Pressure of wind on sails of ship 9 Equilibrium of two forces 10 The Pulley 11 The Compound Pulley, No. 1 12 The Compound Pulley, No. 2 13 Simple Levers, (The three orders) 14 The Lever, 1st order.No.l 15 The Lever, 1st order,No.2 16 The Lever, 2d order, No.l 17 The Lever, 2d order, No.2 18 The Lever, 3d order, No.l 19 The Lever, 3d order, No.2 20 Wheel and Axle 21 The Windlass 22 Inclined Plane 23 Apparatus demonstrat- ing laws of Inclined Plane 24 The Screw 25 Male and Female Screws 26 The Screw Jack 27 The Screw Press 28 The Wedge 29 Friction (Horizontal) 30 Friction Rollers, etc 31 Friction Dynamometer 32 Resistance to motion. Revolving fan 33 Resistance to motion. Parachute 34 Elasticity. Stretched wire 35 Elasticity. Spring bal- ances 36 Elasticity of Torsion 37 Porosity. Physical Pores 38 Porosity. Filters 39 Crystallization, No. 1. Cubic System 40 Crystallization, No. 2. Pyramidal System 41 Crystallization. No. 3. Rhombohedral System 42 Crystallization, No. 4. Prismatic System 43 Crystallization, No. 5. Oblique System 44 Crystallization, No. 6. Anorthic System 45 Crystallization, Heml- hedry 46 Gravity shown by tension of a string 47 Direction of Gravity. Plumb-line 48 Plumb-line, Vertical to fluid surface 49 Convergence of verticals toward center of the earth 50 Attraction. Cavendish Experiment 51 Center of Gravity 52 Center of Gravity. Ex- perimental determina- tion, No. 1 53 Center of Gravity. Ex- perimental determina- tion, No. 2 54 Centers of Gravity. Ex- amples, No. 1 55 Centers of Gravity. Ex- amples, No. 2 56 Different positions of equilibrium, No. 1 57 Different positions of equilibrium. No. 2 58 Stable and unstable equi- librium 59 Examples of equilibrium, No.l 60 Examples of equilibrium, No. 2 61 The Balance. Ordinary gc a i e s 62 The Balance. Center of Suspension 63 The Chemical Balance 64 The Chemical Balance. The Beam 65 Vacuum Balance of Standards Department 66 Leaning Tower of Pisa 67 Repetition of Galileo’s Pisa Experiment 68 Fall of Bodies in Vacuo 69 Galileo’s Experiment with inclined plane 70 Attwood’s Machine 71 Friction Pulleys of Att- wood’s Machine 72 Morin’s Machine 73 Parabolic curve 74 Parabolic path of Pro- jectile 75 Action of Gravity inde- pendent of motion of the body 76 Centrifugal Force appa- ratus 77 Centrifugal Force. Ob- lateness of the Earth 78 Centrifugal Force. Steam Engine Governor 79 Free axes of rotating bodies 80 Foucault’s Gyroscope 81 Diagram of motion of simple pendulum 82 Diagram of harmonic curve 83 The pendulum. Time of vibration not dependent on amplitude 84 The Pendulum. Verifica- tion of laws 85 Borda’s pendulum. No. 1 86 “ “ No. 2 87 Cyclodial pendulum 88 Conical pendulum 89 Inverted pendulum 90 The Metronome 91 Application of the pen- dulum to clocks. No. 1 92 Application of the pen- dulum to clocks. No. 2 93 Foucault’s pendulum ex- periment 94 Compound pendulum (Blackburn) 95 Tisley’s Compound pen- dulum apparatus 96 Curves traced by com- pound pendulum appa- ratus 97 Lissajous’ curves of Com- pound Harmonic vibra- tions 98 The Vernier 99 Spherometer and Mi crometer Screw 100 The Cathetometer 101 Equality of liquid press ure. Pascal’s Law 102 Principle of the Hydrau- lic Press 103 The Hydraulic Press 104 Vertical upward pressure of liquids 105 Pressure of liquids on bot- tom of containing vessels 106 Liquid pressure. Hal- dat’s apparatus 107 Liquid pressure. Pas- cal’s apparatus 108 Hydrostatic Paradox 109 Hydrostatic P a r a d o x. Pascal’s experiment 110 Hydraulic tourniquet. “Barker’s Mill.” NORMAL ANIMAL TISSUES. Photo-Microgarphic Transparencies—Each slide is marked with the number of Diameters. Human. 1 Spinal Cord, Entire Trans- verse Section 2 Spinal Cord. Ganglion Transverse Section 3 Spinal Cord, Nerve Cells, from Anterior Horn. 4 Spinal Cord 5 Scalp, flat Section, with Hair Bulbs 6 Sole of Foot.trans section, with Sweat Ducts Optic Nerve, trans section 8 Nerve Fibers 9Voluntary Muscle, striped 10 Involuntary Muscle, un- striped 11 Lung, Injected 12 “ Stained 13 Kidney, “ trans section 14 Kidney, Injected, trans section 15 Pancreas, Injected 16 Supra Renal Capsule 17 Adipose Tissue 18 Connective Tissue 19 Stomach Villi 20 “ Cardiac end 21 Fat Globules in Adipose Tissue 22 Stomach. Mucous Surface 23 Tongue, Trans section, with Papillae 24 Finger, Foetal, Long sec- tion 25 External Auditory Meatus 26 Peyer’s Patch 27 Meibomian Gland