ILLUSTRATIONS. 



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PLATES. 



Page. 



Plate I. Fig. 1. — Movable poultry houses, Iowa station. Fig. 2. — Orchard 



heating to prevent injury from spring frosts, Iowa station 108 



II. Fig. 1. — Industrial alcohol plant, Minnesota station. Fig. 2. — Flour- 

 testing laboratory, Minnesota station 108 



III. A study of the principles of mule breeding, Mississippi station. 



Fig. 1. — Yearling mule colts out of thoroughbred mares, weights 

 654 and 660 pounds. Fig. 2. — Yearling mule colts out of Clyde 

 mares, weights 770 and 780 pounds 136 



IV. A study of the principles of mule breeding, Mississippi station. 



Fig. 1. — Two-year-old colts, on right out of native mare, on left 

 out of thoroughbred mare, weights 880 and 780 pounds. Fig. 2. — 

 Two-year-old mule colts out of Clyde mares, weights 1,100 and 



1,000 pounds 136 



V. Fig. 1. — New greenhouse attached to agricultural building, Montana 

 station. Fig. 2. — Experimental steer-feeding plant, constructed 

 of hollow tile with cement stucco finish, Nebraska station 144 



VI. Meteorological and climatological observations, Nevada station. 

 Fig. 1. — Refuge camp and headquarters for snow measurements on 

 Mount Rose. Fig. 2. — Sumrnit station, Mount Rose Observatory 



(altitude, 10,800 feet) 144 



VII. Studies of inheritance of characters in melons, New Hampshii'e 

 station. Fig. 1. — Growing melons for crossing in greenhouse. 



Fig. 2. — Parents and offspring in melon crosses 161 



VIII. Fig. 1. — Nutrition-experiments building, Ohio station. Fig. 2. — 



Soil laboratory, Ohio station 161 



IX. Fig. 1. — New greenhouse, Vermont station. Fig. 2. — New horticul- 

 tural building, Wisconsin station 208 



X. Women's building, Oklahoma College 328 



XI. Fig. 1. — Forest-products laboratory, University of Wisconsin. Fig. 

 2. — Class in stock judging. Third District Agricultural School, 



Magnolia, Ark 328 



XII. Fig. 1. — Dining hall. Third District Agricultural School, Magnolia, 

 Ark. Fig. 2. — Main building, Fourth District Agricultural School, 

 Monticello, Ark 328 



XIII. Fig. 1. — Interior of cloth house made by the farm-mechanics class, 



Gardena Agricultural School, Los Angeles, Cal. Fig. 2. — Ear-row 

 seed-corn test on the Bakersfield (Cal.) High School farm 328 



XIV. Fig. 1. — Boys making tile for irrigating system at Bakersfield (Cal.) 



High School. Fig. 2. — Greenhouse erected by the students of the 



Oxnard (Cal.) High School 328 



XV. Fig. 1. — Home economics demonstration at a mothers' meeting, 

 Tuleta (Tex.) High School. Fig. 2.— Farmers' club meeting at 

 Tuleta High School 328 



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