Fahreneit areometer Faraday's hood Fluorescent liquids Fluorescent substances Fortin's barometer Foucault's pendulum Franklin's boiler Franklin's scintillating picture Free air manometer Fresnel's bi-prism Fresnel's mirrors Gas lamp Geissler's tubes Glass globe Glass rods Gold leaf condensing electroscope Grenet's pile

Group of two models illustrative of polyphase motors Gyroscope Haldat's apparatus Hand spectrometer Hartl's disk Headphones Henley's quadrant electrometer Hollow prism for liquids Hughes microphone Hydraulic press Hydraulic wheel Hydraulic whirl Hydrometer (acid) Hydrometer (ammonia) Hydrometer (salt) Hydrostatic balance