iv PREFACE 



team work. Cooperative associations, churches, schools, indi- 

 viduals, all have special fields of activity, but none can do its 

 best work unless it works with and borrows from all the others. 

 When this idea is applied to students of agriculture it means 

 that an important part of their education consists in locating 

 their fellow workers and in cooperating with them freely and 

 wholeheartedly. Elementary Agriculture aims to teach them 

 this. 



The author gratefully acknowledges his special obligations 

 to the following: Dr. Harold G. Foght, specialist in Rural 

 School Practice, United States Bureau of Education ; Professor 

 C. H. Lane, Chief Specialist in Agricultural Education, United 

 States Department of Agriculture ; Thomas J. Mairs, Professor 

 of Agricultural Education, Pennsylvania State College ; L. H. 

 Dennis, Director of Agricultural Education, Harrisburg, Pa. ; 

 Professor Frank App, Agronomist, New Jersey Agricultural 

 Experiment Station ; William D. Hurd, Director Massachu- 

 setts Agricultural College ; Superintendent E. M. Rapp, Read- 

 ing, Pa. ; Professor W. Theo. Wittman and Dr. Franklin 

 Menges of the Pennsylvania Department of Agriculture; 

 Albert E. Wilkinson, Professor of Horticulture, Cornell 

 University, New York ; Dr. William Frear, Professor of 

 Experimental Agricultural Chemistry and Vice-Director of 

 Pennsylvania State Experiment Station; Arthur E. Grant- 

 ham, Professor of Agronomy, Delaware Agricultural Experi- 

 ment Station ; Mr. Charles S. Adams, County Agriculturist, 

 Reading, Pa. ; George H. Von Tungeln, Associate Professor 

 of Rural Sociology, Iowa Agricultural College, and several 



other members of the Iowa Agricultural College. 



J. S. G. 



KUTZTOWN, PENNSYLVANIA. 



