INDEX. 445 



Page. 



Reports, special, various crops 280-282 



Reproduction, natural, National Forests, investigations 182 



Reservations, game, maintenance by Biological Survey 244-245 



Rice — 



growing, California, increase in acreage 25 



region, meteorological service, extension service 58 



River and flood service, scope, value of flood warnings, 1916. etc 56 



Road- 

 Act, Federal Aid, enactment, administration, and apportionment 4, 



37-38, 40 



binders, research work of Roads Office 338-339 



construction — 



convict labor, studies by Roads Office 335-336 



National Forests, funds, decision of Comptroller 355 



work of Roads Office 329-331 



economics, Roads Office studies 335-337 



engineers, special assignments to aid State road departments, various 



States 330-331 



maintenance, methods and studies of Roads Office 332-333 



management, county, studies by Roads Office 335 



Material Test and Research Division, creation, and work, 1916 338-340 



materials — 



bituminous, testing methods, standardization 339-340 



chemical testing and inspection, number and kinds of samples 338 



nonbituminous, investigations and bulletin publication 339 



nonbituminous, testing methods, standardization 340 



tests and research 338-340 



models, photographic negatives and prints, lantern slides, etc 337 



problems, special inspection and advice, various States 330 



systems, county, studies in various States 330 



Road-building materials, physical tests, kinds and States sending 338 



Roads — 



addresses, lectures, and papers, work of Roads Office in various 



States 336 



amount available for States from Forest receipts 177-178 



and other improvements, National Forests, appropriations available. 



1916 177 



and Rural Engineering Office, report of Director 329-344 



bituminous, construction ajid maintenance, experiments 339 



building, responsibility for development of National Forests 155, 159 



concrete, investigations and bulletin publication 340 



construction— 



in National Forests, appropriation. 1016 159 



under Roads Office supervision. 1907-1916, types and number 



square yards 331 



county, superintendence 330 



development, aid of Department 37-3S, 39-40 



economic and statistical data, collection, bulletin publications, etc 335 



exhibits, 3916. number of persons examining 337 



experimental, locations and description 329 



forest, development, and increased mileage 38, 39-40 



foundation tests 340 



Maryland experimental, cooperative maintenance, county appropri- 

 ations, etc 332-333 



Missouri, cooperative studies of traffic conditions by Roads Office 336 



models and exhibits, at various expositions and fairs, work of 



Roads Office 336-337 



National Forest and p;irk surveys, maintenance and construction 



work 333-334 



Office, library, work, 1916 295 



post — 



completed, cooperative maintenance, in various States, mile- 

 age, traffic studies 1 333 



economic studies by Roads Office 336 



progress of work, 1916, locations and mileage 330 



