CONTENTS. 7 



Page. 



Report of the librarian 657 



General statement 657 



Staff meetings 658 



Rooms 658 



Library publications 658 



Agricultural libraries section of the American Library Association 658 



Use of the library 658 



Interlibrary loans 659 



Accessions 661 



Cataloguing and classification 662 



Periodicals 664 



Binding 667 



Duplicates 667 



Translating 667 



Mailing lists and exchanges 668 



Bureau, division, and office libraries 669 



Appendixes 671 



Report of the Director of the Office of Experiment Stations 685 



Introduction 685 



Relations with agricultural experiment stations 685 



Relations with institutions for agricultural education 688 



Publications of the office 694 



Work for the Civil Service Commission 696 



Insular stations 696 



Irrigation investigations 705 



Work in the fiscal year 1912 706 



Work in 1913 707 



Drainage investigations i 707 



Drainage surveys 708 



Preliminary examinations and construction work 708 



General technical investigations 709 



Dissemination of information 709 



Work planned for the fiscal year ending June 30, 1912 710 



Work proposed for the fiscal year ending June 30, 1913 710 



Nutrition investigations 711 



Report of the Director of the Office of Public Roads 715 



Work of the year 715 



Object lesson and experimental roads 716 



Highway bridges and culverts 737 



Instruction in highway engineering 738 



Physical and chemical investigations of road materials 738 



Special inspection and advice 745 



Model systems — construction, maintenance, and administration 746 



Exhibits and road-improvement trains 751 



Lectures, addresses, and papers 752 



Photographic laboratory 753 



Statistical and economic investigations 753 



Library 756 



Publications 756 



Classified expenditures for 1911, by projects 757 



Outline of plans for the current year 758 



Plans and recommendations for 1913 758 



Report of the Solicitor 759 



Outline of office work 759 



Administration of acts of Congress 763 



Legal work for the Forest Service 783 



