AGRICULTURE AND HORTICULTURE 



FIELD AND LABORATORY STUDIES OF SOILS. By Pro- 

 fessor A. G. McCALL, Ohio State University, viii+77 pages, 

 5. by 7. 32 figures. Cloth, 60 cents net. 



FIELD AND LABORATORY STUDIES OF CROPS. By Pro- 

 fessor A. G. McCALL, Ohio State University, viii+133 pages, 



5 by 7. 54 figures. Cloth, 85 cents net. 



SOILS. By Professor A. G. McCALL, Ohio State University. (In 

 preparation.) 



MARKET GARDENING. By Professor F. L. YEAW, Oasis Farm 



6 Orchard Company, Roswell, New Mexico. Formerly Professor 

 of Market Gardening, Massachusetts Agricultural College. vi+ 

 120 pages, 5 by 7. 36 figures. Cloth, 75 cents net. 



THE CHEMISTRY OF FARM PRACTICE. By T. E. KEITT, 

 Chemist of South Carolina Experiment Station, and Professor of 

 of Soils, Clemson Agricultural College, xii+253 pages, 5 J^ by 8. 

 81 figures. Cloth, $1.25 net. 



STUDIES OF TREES. By J. J. LEVISON, Forester, Park Depart- 

 ment, Brooklyn, N. Y. x+253 pages, 5M by 8. 156 half-tone 

 illustrations. Cloth, $1.60 net. 



AGRICULTURAL DRAFTING. By CHARLES B. HOWE, M.E. 

 46 pages, 8 by 10%- 45 figures, 22 plates. Cloth, $1.25 net. 



SCHOOL ENTOMOLOGY. For Secondary Schools and Agri- 

 cultural Short Courses. By E. DWIGHT SANDERSON, Formerly 

 Dean, College of Agriculture, West Virginia University, and L. M. 

 PEAIRS, Professor of Entomology, West Virginia University. 356 

 pages, 6 by 9, 233 figures. Cloth, $1,50 net. 



BIOLOGY 



LABORATORY MANUAL IN GENERAL MICROBIOLOGY. 



Prepared by the Laboratory of Bacteriology, Hygiene and Path- 

 ology. Michigan Agricultural College, xvi+418 pages, 5i by 8. 

 73 figures, Several tables and charts. Cloth, $2.50 net. 



