VIII CONTENTS. 



Page. 



Traction engine plowing at the Central Experiment Farm 613 



The largest plow in the world, A. Inkersley 613 



Experimental grain elevator and scientific investigations in it, J. F. Hoffmann. 613 



The cement resources of Alabama, E. A . Smith •. <; 1 4 



The materials and manufacture of Portland cement, E. C. Eckel 614 



Fuel-testing plant of the United States Geological Survey 614 



MISCELLANEOUS. 



Seventeenth Annual Report of Nebraska Station, 1903 614 



Annual Report of South Dakota Station, 1904 614 



Summary of work of Poltava experiment field for 15 years (1886-1902) 614 



Foreign markets for American fruits 614 



Course in nature study for primary grades, Annie M. < rodingand MaryC. Breen. 614 



Agricultural investigations in the Province of Santa Fe, 1 1 . Miatello 614 



German agriculture at the St. Louis Exposition of 1904 615 



Experiment Station Work, XXVII 615 



Crop Reporter 615 



Methods and routes for exporting farm products, E. G. Ward, jr 615 



The agricultural distribution of immigrants, R. DeC. Ward 615 



Review of legislation, 1903 — general agriculture, E. \V. Allen 615 



