VIII CONTENTS. 



Eeport of the Federal Horticultural Board Continued. Page. 



New plant quarantines ' . 529 



Cotton waste and unnaanufactured cotton used as packing for imported 



articles 530 



Ship's ballast as a source of introducing plant enemies 630 



War activities 531 



Need for enlargement of port inspection service 531 



A plant-quarantine law needed for the District of Columbia 532 



List of current quarantine and other restrictive orders 533 



Index 537 



