10 CONTENTS. 



Proprosa in agricultural education, 1909 — Continued. Page. 



The elementary nchools 321 



Boys' and girly' agricultural clubs 322 



Nature study course 323 



Farmers' Institutes in the United States, 1909 327 



Institutes held 327 



Sessions 328 



Attendance 328 



Appropriations for institutes 328 



Cost of institutes 328 



Agricultural college and experiment station aid 328 



Special institutes 329 



Evidences of progress 331 



Improved methods 332 



Agricultural college extension work 334 



The American Association of Farmers' Institute Workers 335 



Institutes for women 336 



The annual report of the state directors 337 



Monthly meetings 338 



Work of the Office 340 



State reports 340 



Statistics of farmers' institutes, 1909 356 



Progress report of investigations in human nutrition in the United States, 1905- 



1909 361 



Introduction 361 



Contributors to the subject of nutrition 361 



Studies of foods and food products 365 



Cooking and its relation to nutritive value 374 



Canning and preserving 377 



Labor-saving devices and home conveniences 379 



The storage of food and its relation to quality and nutritive value 380 



Foods and their relation to problems of hygiene 383 



Dietary studies 385 



The diet of children and school lunches 387 



Cost of living and other sociological data 388 



Digestibility of food 388 



Special studies of protein and other food constituents 390 



Dietary standards and physiological requirements 392 



Studies of the physiology of growth 394 



Experiments with the respiration calorimeter and other technical studies. . 394 



Text-books and handbooks on nutrition 397 



Recent irrigation legislation 399 



Administrative law 399 



Acquirement of rights 402 



Distribution of water 406 



Transfers 407 



Irrigation districts 410 



General legislation 412 



Reclamation of the southern Louisiana wet prairie lands 415 



Introduction 415 



Formation of the lands 415 



Natural levees 416 



Purpose of investigations 419 



