Sigaud de la Fond was a pupil of Nollet, and taught experimental physics in Paris at the College Louis-le-Grand. De la Fond suggested how a cabinet of experimental physics should be arranged, proposing a great number of instruments often displayed as if in a stage set.
Joseph Aignan Sigaud de la Fond (1730-1810): Description et usage d’un Cabinet de Physique Experimentale, 1775, vol. 1
This illustration shows instruments which demonstrate the principles of gravity.
Joseph Aignan Sigaud de la Fond: Description et usage d’un Cabinet de Physique Experimentale, 1775, vol. 2
Some instruments demonstrated acoustics. This illustration shows funnels which transmit and modify sound, and how sound from a bell is muted by bell jars. The author also suggests an experiment (Figure 5) in which a bird is placed under a bell jar and the air is evacuated with an air pump. This demonstrates the importance of air for breathing. The text describes how the bird first finds it difficult to breathe, then convulses, and finally perishes.