CONTENTS 



CHAPTER PAGE 



PREFACE v 



By the editor 



INTRODUCTION , vii 



By George Ellery Hale 



I SCIENCE AND WAR . ;; V V : V V ' v' -^ ' * 3 

 By George Ellery Hale 



II WAR SERVICES OF THE NATIONAL RESEARCH COUNCIL 13 

 By George Ellery Hale 



THE ROLE OF PHYSICAL SCIENCE IN 

 THE WAR 



III CONTRIBUTIONS OF PHYSICAL SCIENCE 33 



By Robert A. Millikan 



IV SOME SCIENTIFIC ASPECTS OF THE METEOROLOGICAL 



WORK OF THE UNITED STATES ARMY 49 



By Robert A. Millikan 



V SOUND-RANGING IN THE AMERICAN EXPEDITIONARY 



FORCES *v ; v 63 



By Augustus Trowbridge 



VI WAR-TIME PHOTOGRAPHY . . > * ,# 89 



By Herbert E. Ives 



VII OPTICAL GLASS FOR WAR NEEDS 103 



By Harrison E. Howe 



THE ROLE OF CHEMISTRY IN THE WAR 



VIII THE SUPPLY OF NITROGEN PRODUCTS FOR THE MANU- 

 FACTURE OF EXPLOSIVES 123 



By Arthur A, Noyes 



XV 



