| Light Waves 
j}and Their Uses 
By ALBERT A. MICHELSON 
Head of the Department of Physics 
in The University of Chicago 
HIS volume, illustrated with 108 text fig- 
ures and three lithographed plates, pre- 
sents the latest theories about light waves ina 
way easily understood by the layman and yet 
with an accuracy and completeness that sat- 
isfies all scientific requirements. The book 
is as useful to cne who would know what a 
light wave is, and thus get an understanding 
of a revolutionary idea in modern science, 
as for one possessed of the highest scientific 
training: for the latter it will prove an ad- 
mirable condensation of the somewhat scat- 
tered literature of the subject. 
$1.50 net; postpaid $1.63 
The University of Chicago Press 
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