A B C D E F G H I J K L M N O P Q R S T U V W Z

Fletcher Russel & Co, Warrington, England
Gas burner
Gas burner with a horizontal jet

Fuess, Berlin, Germany
Fuess Spectrometer
Two Lummer-Gehriche lamin spectroscope

Gilbert & Wright, London, England
Small silver telescope


Goerz, Berlin, Germany
Prismatic binocular

Hartmann & Braun A.G., Frankfurt, Germany
Mobile coil galvanometer with mirror

Hilger LTD, London, England
Stereoscopic viewer for crystal models

Staircase diffraction grating

Jest, Torino, Italy
Due sbarre calamitate gemelle con armatura e cassetta
Magnetoscope

Thermoelectric pile

Nobili galvanometer

Rotation and vibration apparatus

Froment electro-physiological inductor

Screw with iron support

Seven mirrors apparatus for the composition of light
Gravesande pirometer
Saussurre igrometer


Jones, London, England
Achromatic terrestrial telescope

Fahrenheit Termometer