Bulletin 138 



June 1908 



NE\^ HAMPSHIRE 

 AGRICULTURAL EXPERIMENT STATION 



DEPARTMENT OF CHEMISTRY 



Humus in New Hampshire Soils 



Potatoes on Clay Loam. Variety Plots. 



By FRED W. MORSE 



NEW HAMPSHIRE COLLEGE 



OF 



AGRICULTURE AND THE MECHANIC ARTS 



DURHAM, N. H. 



