--Reflection and Refraction of
Sound.--Frequency and Pitch of Notes.--Resonance and Forced
Oscillations.--Analysis of Vibrations.--The Transverse
Vibrations of Stretched Strings or Wires.--Pipes and other Air
Cavities.--Rods.--Plates.--Membranes.--Vibrations maintained by
Heat.--Sensitive Flames and Jets.--Musical Sand.--The Superposition of
Waves.--INDEX.
"The work ... may be recommended to anyone desirous of possessing an
EASY UP-TO-DATE STANDARD TREATISE on Acoustics."--_Literature._
"Very clearly written.... The names of the authors are a guarantee of
the SCIENTIFIC ACCURACY and UP-TO-DATE CHARACTER of the
work."--_Educational Times._
* * * * *
VOLUME III. At Press. Fully Illustrated.
~HEAT.~
Remaining Volumes in Preparation--
~LIGHT; MAGNETISM AND ELECTRICITY.~
* * * * *
~THE MEAN DENSITY OF THE EARTH:~ An Essay to which the Adams Prize was
adjudged in 1893 in the University of Cambridge. By J.H. POYNTING,
Sc.D., F.R.S., Late Fellow of Trinity College, Cambridge; Professor of
Physics, Birmingham University. In Large 8vo, with Bibliography,
Illustrations in the Text, and Seven Lithographed Plates. 12s. 6d.
"An account of this subject cannot fail to be of GREAT and GENERAL
INTEREST to the scientific mind. Especially is this the case when the
account is given by one who has contributed so considerably as has Prof.
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