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Breathing Apparatus for Glider
Diffraction grating, photo negative of
Army air force bubble sextant
Voltmeter, multicellular electrostatic (A)
Winslow strength-computing slide rule
Bridge, wheatstone
Sector, brass
Small quartz spectrograph
Hygrometer
Potentiometer, Model 7, deflection
Potentiometer, type K-2
pH meter, Model M
Ion chamber used by Millikan and Bowen
Torsion seismograph
Geiger counter
Microscope
Aviation altimeter
Calculator, Marchant
Mk100, Model 0 fuze
Microscope, brass eyepiece

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