14 ILLUSTRATIONS. 



Page. 

 Plate XX. Fig. 1. — Sheep judging at Farm Boys' Encampment, Clarinda, 

 Iowa. Fig. 2. — Children starting home from model rural school, 



Kirksville, Mo 382 



XXI. Fig. 1. — Concrete retaining wall, north side of Twin Falls Canal. 

 Fig. 2. — Waste gates, north side of Twin Falls Canal, Milner Dam 



in the background 472 



XXII. Fig. 1. — Main canal head works, Dechutes Irrigation & Power Co., 

 Deschutes, Oreg. Fig. 2. — Main canal flume of Deschutes Irriga- 

 tion & Power Co., in process of enlargement 480 



XXIII. Fig. 1. — Effect of seepage and alkali upon a bearing orchard in the 



Yakima Valley, Wash. Fig. 2. — Country drain-tile factory in 



the Bear River Valley, Utah 492 



XXIV. Fig. 1. — Trenching for tile drains by steam power. Box Elder 



County, Utah. Fig. 2. — Difficulties of constructing drains by 



hand labor, Montrose, Colo 492 



XXV. Fig. 1. — Steam trenching machine equipped for soft land, Roswell, 

 N. Mex. Fig. 2. — Ditching with a steam land dredge, Moxee 



Valley, Wash 494 



XXVI. A drainage ditch made with a steam dredge in the Yakima Valley, 

 Wash. Fig. 2. — Hand-excavated drainage ditch curbed to pre- 

 vent caving, Simnyside, Wash 496 



XXVII. Views of the Guam Experiment Station. Fig. 1. — General view. 



Fig. 2. — Entrance to experimental grounds. Fig. 3. — Squashes. 504 

 XXVIII. Crops grown at the Guam Experiment Station. Fig. I. — Pigeon pea. 

 Fig. 2. — ^Jerusalem corn. Fig. 3. — Nursery, showing plants in 



bamboo pots 504 



XXIX. Fig. 1. — Caribao and native plow, Guam station. Fig. 2. — Caribao 



and disk harrow, Guam station 510 



TEXT FIGURES. 



Fig. 1. Tanks for soil investigation at Florida station — section 118 



2. Tanks for soil investigation at Florida station — general plan 118 



3. Basement plan of model rural school 384 



4. First-floor plan of model rural school 385 



5. Attic plan of model rural school 386 



6. Collecting pits in connection with tile drains as used in Montrose County, 



Colo 494 



7. Plan and profile showing relief drainage wells as used in Otero County, 



Colo 495 



8. Grain-storage tank, Guam Experiment Station 508 



