The Maynooth collection has an interesting range of instruments to demonstrate aspects of sound and hearing, most of them teaching instruments, often supplied by the firm of Yeates and Son of Dublin. A major maker of such demonstration instruments in the second half of the nineteenth century was the Parisian, Rudolf Koenig (1832-1901). While Yeates and Son certainly made many of the instruments which they sold, they also distributed those of Koenig.

The Sound instruments kept in the Museum can be divided into five categories as follows:

	Instruments using Flames
	Organ Pipes
	Sirens
	Tuning Forks
	Other Sound Instruments

Instruments using Flames