CONTENTS. IX 



I'iige. 



Third Annual Good Roads Oonventidu, lield at Albany, N. Y., Jan. 28-29, 1902. 405 



Pennsylvania's road system, J. lianiilton .... 405 



City roads and pavements suited to cities of moderate size, W. 1*. Jucisun 405 



New covering for r( ku Is -105 



Road making from the engineer's standpoint, A. \V. Campbell 405 



Road building with cnnvict labor in the Southern States, J. A. Holmes 405 



( iovernment coojieration in objectdesson road work, M. Dodge 405 



Mountain roads as a source of revenue, J. W. Abbott 406 



The new farm 1 )uildings, F. B. Lintield 406 



The pressure of stored grain on the sides of recei)tacles, D. N. (iolovin 406 



Refrigerating machinery; its principles and management, A. R. Leask 406 



Refrigerating and ice-making machinery, A. J. Wallis-Tayler 406 



Refrigeration, cold storage, and ice making, A. J. Wallis-Tayler 406 



Materials of construction, J. 15. .Tohnson 406 



MISCELLANEOUS. 



Bulletins and annual reports of Arizona Station, H. J. Hall 406 



General index to rejiorts and l)ulletins of Ohio Station 406 



Agriculture in the tropical islands of the United States, O. F. Cook 407 



Agricultural investigations in island possessions of the V. S., W. H. Evans 407 



Tlie future demand for American cotton, J. L. Watkins 407 



The cotton-seed industry, C. M. Daugherty 407 



Wheat ports of the Pacific coast, E. S. Holmes 407 



Some problems in the rural common school, A. C. True 407 



List of Department publications, 1840 to 1901, R. B. Handv and M. A. Cannon. 408 



Nature studv and life, C. F. Hodge ". 408 



