Apparatus for experiments on the superficial viscosity of water
Reflectors for short sound waves
Wooden stand with 3 levelling screws
Electrical interrupter
Apparatus for the demonstration of fluid motion.
Apparatus for experiments on the lubricating and other properties of thin oily films.
Apparatus used in the isolation of argon
Electrical interrupter
Apparatus for the preparation of Argon.
Hughens gearing to illustrate electromagnetic induction
Five eudiometer tubes
Apparatus for demonstrating the interference of sound-waves
Resistance apparatus
Induction-compensator
Induction-compensator
Diagram for stroboscopic speed regulation
Coils used as a standard of induction
Zinc bell
Magnetising coil
Triple coil mounted in mahogany ring
A Groves or Apps motor, for driving colour wheel.
Instrument for measuring the intensity of vibration in the air
Experiment apparatus
Experiment apparatus
Apparatus for the demonstration of fluid motion
Sound direction apparatus
Apparatus for determining the refractivity of argon
Manometer
Apparatus for demonstrating the interference of sound-waves
Apparatus for determining the refractivity of argon
Large wooden trumpet
Multiple pipe for experiments on sound
Horn with elliptical section (see note)
Apparatus for experiments concerning aeolian tones
Clay pipe-stems, used in experiments on Argon.
Three metal dishes
Model to illustrate the principle of reciprocity.
Glass plate
1878
Inductor tube
Inductor tube
Inductor tube
Lantern slides to illustrate a method of enhancing photographic gradation
Horn with elliptical section
Apparatus for the investigation of the passage of sound through a narrow slit.
Electrical interrupter
"Bird-Call"
Apparatus for the detection of motion through the aether.
Apparatus for the elimination of reflected sound-waves (2 tinplate discs)