22 



HATCH EXPERIMENT STATION. 



[Jan. 



Part II. — Report on^ General Work in the 

 Chemical Laboratory. 



CHARLES A. GOESSMANN. 



1. Analysis of materials sent ou for examination. 



2. Notes on wood ashes. 



1. Analysis of Materials sent on for Examination. 



During the season of 1902, 2'! 7 samples of fertilizing 

 materials, soils, etc., have been received from farmers within 

 cm* State. The results of analysis of these substances have 

 been published, when deemed of importance to the genera^l 

 public, in three bulletins: No. 81, March; No. 83, July ; 

 and No. 84, November, 1902, of the Hatch Experiment 

 Station of the Massachusetts Aoricultural Colleo-e. 



Nearly every manufacturing industry has its by-products, 

 which have often a distinct value for manurial purposes. 

 The use of this class of materials has been encourao'ed when- 

 ever the chemical analysis of the same proves them to be of 

 sufficient value to merit their use. The investigation of 

 general fertilizing material of this nature is carried on free 

 of charge to farmers in the State ; the material is taken up 

 for analysis in the order of arrival of samples at this office. 

 We have advised farmers to send material for free analysis 

 as early in the season as possible, as work of this natiu'e has 

 to be suspended during the rush of official inspection Avork 

 during the spring and summer months. Following is a list 

 of materials received during the past season : — 



