This text comprises an attempt by the author to render the science of acoustics in a way that it can be "interesting to all intelligent persons", including those who do not have any special scientific knowledge. To encourage the interest of the reader, the subjects of this book are proposed experimentally, with each experiment paced before the reader so that they can be realised as an actual operation. This scarce scientific classic was devised as a comprehensive compendium on the topic of sound, as well as being a conscious attempt to help solidify the increasing recognition of scientific claims at the time. Still applicable today, this fascinating book will appeal to aspiring scientists and constitutes a worthy addition to any library. John Tyndall was a prominent 19th century physicist, whose initial scientific fame arose in the 1850s from his study of diamagnetism. This book was originally published in 1867 and is proudly republished now with an introductory biography of the author.