CONTENTS. V 



Report of the Secretary — Continued. 



Bureau nf Soils — Continued. Page. 



Tobacco investigations lxx 



Sumatra tobacco in localities other than Connecticut lxxiv 



Investigations in the filler tobacco districts lxxv 



Conference of tobacco experts lxxv 



Salaries of tobacco experts lxxv 



Extension of the tobacco investigations lxxvi 



Drainage investigations lxxvii 



Bureau of Chemistry lxxviii 



Examination of imported food products lxxviii 



Investigations of forest products lxxviii 



Laboratory tests of road materials lxxviii 



Investigations in the sugar laboratory lxxix 



Studies of insecticides lxxix 



Study of environment of chemical composition of cereals lxxix 



Study of waters used in irrigation lxxix 



Establishment of new laboratories lxxix 



Work for other departments lxxx 



Division of Entomology lxxx 



Work on insects from abroad lxxx 



The San Jose scale and its Asiatic ladybird enemy lxxx 



Importations of other beneficial insects lxxxi 



The South African grasshopper fungus lxxxiii 



The fig fertilizing insect lxxxiii 



Work on the Mexican cotton boll weevil lxxxiv 



Work on the codling moth in the Northwest lxxxv 



Work on insects damaging forests lxxxv 



Work on scale insects lxxxvx 



Insects injurious to shade trees lxxxvii 



Insects injurious to truck crops lxxxvii 



Work on insects injurious to stored products lxxxvii 



Work on insects in their direct relation to the health of man lxxxvii 



Unclassified work on injurious insects lxxxviii 



Insect determinations lxxxviii 



Experimental work with insecticides lxxxviii 



Silk investigations lxxxix 



Apicultural investigations lxxxix 



Division of Biological Survey xc 



Biological Survey xc 



The prairie dog scourge xci 



Section of economic ornithology xci 



Section of game protection and preservation xcii 



Division of Statistics xcii 



Office of Experiment Stations xciii 



Development of the work of the Office xciii 



Progress of the experiment stations xciv 



Cooperation of the stations with the Department xcvii 



Graduate school of agriculture xcviii 



Improvement of rural schools xcix 



The agricultural colleges c 



Secondary and elementary schools of agriculture ci 



Farmers' institutes cii 



Experiment stations in Alaska cm 



Hawaii experiment station civ 



Porto Rico experiment station cvi 



Nutrition investigations cvii 



Irrigation investigations cix 



The distribution and use of water ex 



Drainage surveys ex 



Studies of irrigation laws cxi 



Irrigation in the humid States cxii 



Agricultural engineering cxiii 



Need of adequate funds cxv 



Division of Foreign JNIarkets cxv 



