January-February - Air Defense Artillery

Military Texts
Spanish Grammar
CARTILLA MILITAH. By Luis J. Navascues and Anson
F. Sherman. New York: F. S. Crofts and Company,
1942. 200 Pages; Vocabulary; $1.50.
Navascues and Sherman have produced an excellent
elementary reader for those students who have completed
basic Spanish grammar. The text has been prepared especially
for military personnel with exercises illustrating
mUitaryaction. Of especial value for Spanish classes con.
ducted within military units. The book contains a Spanish.
En~lish and English-Spanish vocabulary.
Portuguese Grammar
AN INTRODUCTORY PORTUGUESE GRAMMAR.
By E. B. Williams, New York: F. S. Crofts and Company,
1942. $1.90.
Written for the beginner who wishes to learn the languageof
Portugal and Brazil. This book is of especial interest
to those with some knowledge also of Spanish as many
pointsof similarity between the two languages are stressed.
A. special effort has been made to simplify the rules of pro-
DUnciationand to make clear the use of written accent
ks. A Portuguese-English and English-Portuguese vocabulary
is included.
For Map-Makers
lLITARY AND NAVAL l\IAPS AND GRIDS. By
William W. Flexner and Gordon L. \Valker. New York:
The Dryden Press, Inc., 1942. 93 Pages; Index; Bibliography;
Illustrated; $1.00.
The preface of this paper-backed booklet states "The
plIIpose of this book is to introduce to students without
Cllensi\'emathematical background the general principles
the construction and use of maps." The student, how-
~, should have at least a knowledge of geometry, plane
-.d spherical, and trigonometry to get the most out of the
IL':at
The JOURNAL can supply any book in print,
at the usual Association discount.
\\lith the background as outlined above, a painstaking
student will learn much about maps and the different
types of projections, as well as a bit about navigation. The
exercises at the end of each section are a good check on
how well the student is understanding the lessons.
Now You See It
MODERN CAMOUFLAGE. By Major Robert P. Breckenridge.
New York: Farrar and Rinehart, Inc., 1942.
268 Pages; Appendix; Bibliography; Index; IIlustrated;
$3.50.
Approved by the Office of Civilian Defense, this book is
more adapted to civilian and industrial problems than military
needs, but the basic principles outlined are still valuable.
\Vell illustrated with before-and-after pictures, charts,
and tables, the book is easily understood, ignores the
hokum that characterizes many publications on camouflage,
and presents a logical and restrained approach to a
very timely subject.
It is unfortunate that with the relatively small field of
probable purchasers, the price of the book must of necessity
be rather high. However, if it solves one camouflage problem
for the purchaser, it has paid its way.
Sugar-Coated Math
POPULAR MATHEMATICS. By Denning Miller. New
York: Coward & McCann, Inc., 1942. 616 Pages; Illustrated;
$3.75.
This is not a cut and dried textbook of mathematics but
rather a popularized presentation of the history, development,
and application of eight divisions of the subject:
arithmetic, geometry, algebra, analytic geometry, trigonometry,
conic sections, solid geometry and spherical trigonometry,
and calculus. The why and wherefore of mathematics
is presented interestingly and clearly.
If you need, or would like, to be eased back into the
mathematical consciousness of former school days, this is
just the book for you. \\lhether or not you liked math before,
your interest will be held from the first to the last
page of this book. Profusely illustrated with diagrams,
examples, tables, etc.