This device consists of a brass cylinder with capsule. Above the opening in this capsule is ...

Measurement: Sensory (auditory) perception. Instrument for determining the discrimination threshold of the pitch. Physical description: This device ...

Reeks van 24 foto's, geïnspireerd door een foto van de St. Petersburg Academy of Fine Arts, ...

Het afgebeelde universitair wapenschild werd vervaardigd voor Petrus Franciscus Xaverius Blyau uit Kortrijk ter gelegenheid van ...

Measurement: Instrument for investigating motor fatigue. This is part of the 'Mosso Ergograph' (the 'appareil d'immobilisation') ...

This instrument consists of two red wooden columns with a metal lamella. Mirrors are attached to ...

A 1000-watt lamp can be adjusted in height and width by rotary knobs at the back ...

A wooden viewing box has an opening at the front and top. Inside is an oblique ...