EXPERIMENT STATION BULLETINS. 387 



FOREWORD. 



Technical Bulletin No. 7. 



This bulletin forms a report of the continuation of the work out- 

 lined in Technical Bulletin No. 4. 



Some definite information is given upon the composition of the 

 organic matter of peat soils and two individual compounds, present in 

 considerable quantities, have been isolated. 



It is proposed to continue the study of the composition of the organic 

 matter of soils in respect to nitrogenous substances, and to supplement 

 the laboratory work with pot experiments conducted in the open fields. 

 It is hoped that the application of the laboratory results may, later, 

 be extended to larger experimental plots and finally be adopted as 

 general farm practice. 



ANDREW J. PATTEN. 



