Bausch & Lomb 
Balopticon 
Model C 
is an excellent instrument for 
class-room demonstration. It 
is compact and light in weight, 
simple in construction, very easy 
to manipulate and of the highest 
degree of efficiency. 
@. Added to all these advan- 
tages it is exceptionally low in 
price for so thoroughly scien- 
tific an instrument. 
@ All its parts are standard- 
ized so that it is possible to 
add, at any later time, attach- 
ment for opaque and micro- 
scope projection. 
@ Descriptive literature on 
request. 
Our Name on a Photographic Lens 
) Microscope, Field Glass, Laboratory Ap. 
paratus, Engineering or any other 
tific Instrument is our Guarani 
Bausch & lomb Optical ©. 
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SAN FRANCISCE 
fa) 
SECOND-YEAR 
MATHEMATICS 
FOR 
SECONDARY SCHOOLS 
By GEORGE WILLIAM MYERS 
Professor of the Teaching of Mathematics and Astron 
y in the College of Education of the University of 
Chicago, assisted by the Instructors in Mathematics in 
the University High School 
f oer publication of ‘“Second-Year 
Mathematics for Secondary Schools” 
marks the second step in the production 
of a mathematical series in accordance 
with the latest pedagogical ideas. 
The two texts cover the essentials of 
what is commonly required of all pupils 
in the first two years of secondary schools 
in this country, and include, in addition, 
the elementary notions of plane trig- 
onometry through the solution of right 
triangles, as well as an introduction to 
some topics of formal algebra not usually 
treated in secondary texts. Second- 
Year Mathematics lays chief emphasis 
on geometry, as First-Year Mathematics 
does on algebra, Professor Myers began 
the preparation of his books on the con- 
viction that the divisions of mathematics 
in secondary schools were largely art 
ficial and ineffectual in connecting the 
He aimed to make the work : 
high-school year connect smoothly me: 
logically with eighth-grade work throug 
both mensuration and general number, 
rather than with one of these subjects 
in the first year and the other im the 
second year. 
id $1.63 
ieee et oth oe 
Address Dept. P. 
; ess 
The University of Chicago Pr 
CHICAGO, ILLINOIS 
