III. 



INSTRUCTIONS REGARDING THE SAMPLING OF MATE- 

 RIALS TO BE SENT ON FOR EXAMINATION WITH 

 STATEMENTS OF CONDITIONS TO SECURE 

 ANALYSES FREE OF CHARGE. 



It is of the utmost importance tliat parlies forwarding fertilizing 

 substances for examination should take particular pains in sampling, 

 packing and forwarding such materials in order that the analyses 

 obtained may represent the average composition of the goods 

 sampled, that no addition or loss of moisture in transportation may 

 be effected and that the package be addressed to the proper depart- 

 ment. 



All samples are received and entered in the order of their arrival 

 at this office. Each sample is assigned a number and is taken up 

 for investigation in the order in which it has been received. 



All samples should be addressed to Dr. C. A. Goessinaiiii, 

 Chemical Department of the Hatch Experiment Station, Am- 

 herst, Mass., to prevent confusion and possible delay. Express 



charges must always be prepaid. The name of the Sender should 

 be enclosed in an envelope and placed Inside the receptacle 



together with a statement of the nature of the material forwaided 

 for analysis ; whether it is an agricultural chemical, mixed fertilizer, 

 a wood ash or the by-product of some manufacturing industry. 



