122 HATCH EXPERIMENT STATION. [Jan. 1900. 



from the average analysis : nitrogen, 1.31 per cent. ; potash, 

 .16 per cent. ; phosphoric acid, .86 per cent. ; lime, 1.13 per 

 cent. 



Hen Manure. — In this ingredient we have a very rich 

 fertilizer and a material that is worthy of careful treatment. 

 To save the nitrogen that otherwise might pass into the air 

 a "fixer" is a necessity. Two samples received at the 

 laboratory were analyzed, as follows : — 



No. I. was treated with kainite, a material analyzing on an 

 average 16 per cent, potash, and a substance capable of fix- 

 ing the ammonia, thereby saving this element and at the 

 same time supplementing the manure in potash, — the ingre- 

 dient which it is deficient in. This application of an am- 

 monia fixer may be applied to all animal refuse products, 

 and, as is seen, has a twofold action, — the saving of nitrogen 

 and the supplementing of potash. 



Cotton-seed Meal. — This material still holds its own and 

 is a recoo-nized standard article, a source of nitrogen soua^ht 

 by tobacco growers. Its high standard has been maintained 

 as in previous seasons. 



