The latest rotary types, such as the Gnome, Monoeoupape, and Le Rhone, are fully explained*
« as well as the recently developed Vee and radial types. The subjects of carburetion, ignition,

cooling and lubrication also are covered in a thorough manner. The chapters on repair ana
maintenance Ae distinctive and found in no other book on this subject.
Invaluable to the student, mechanic and soldier wishing to enter the aviation service.
Not a technical book, but a practical, easily understood work of reference for all interested
in aeronautical sdenoe. 576 octavo pages. 253 specially made engravings. Price . f3«00 net

GLOSSARY OF AVIATION TERMS

Termes D'Avlatlon, English-French, French-Ungllsh. Compiled by Lieuts.
Victor W. Pag6, A.S., S.C.U.S.R., and Paul Montariol of the French
Flying Corps, on duty on Signal Corps Aviation School, Mineola, L. I.
A complete, well illustrated volume ^tended to facilitate conversation between English-

spealdng and French aviators. A very valuable book for all who are about to leave for duty

overseas.
Approved for publication by Majcr W. G. Kilner, S.C., U.S.C.O. Signal Corps Aviation

School. Hazlehurst Field, Mineola, L. I.
This book should be in every Aviator's and Mechanic's Kit for ready reference. 128 pages.
Fully illustrated with detailed engravings. Price ^1,



Aviation Chart. Location of Airplane Power Plant Troubles Made Easy.
By Lieut. Victor W. Pag6, A.S., S.C.U.S.R.
A large chart outlining all parts of a typical airplane power plant, showing the points where
trouble is apt to occur and suggesting remedies for the common defects. Intended espe-
cially for Aviators and Aviation Mechamcs on School and Field Duty. Price . . 50 CentS

BRAZING AND SOLDERING

Brazing and Soldering. By James F. Hobart.
