12 CONTENTS. 



Development of methods of draining irrigated lands — Continued. Page. 



Steam land dredges 496 



Maintenance 496 



Cement drain tile 497 



Wooden box drains 497 



Cooperative drainage 498 



Beneficial effect of draining on alkali land 499 



Pumping drainage water from Bumps into irrigation ditches 499 



The Guam Agricultural Experiment Station and its work for the fiscal year 1910 . 503 



The station 503 



Improvements 503 



Forage crops 505 



Vegetable experiments -.-..-..- 506 



Grain stoiing experiments 507 



Hedge plant studies 509 



Plant introductions 509 



Implements 510 



Imports and exports of the island of Guam 510 



