depth of subsoil, the method of fertilization and crop rotation which 

 has been in practice, general fitness of land for cultivation and all 

 other information that would aid the chemist in making his report. 



Parties are not encouraged to send samples of soil for chemical 

 examination without previous correspondence. In many cases a 

 statement giving the locality and physical character of the soil, the 

 method of crop rotation and fertilization followed for a number of 

 years previous may be sufficient to enable the station to advise intel- 

 ligently concerning future treatment. The chemical examination of 

 soils is time consuming and expensive and unless all the conditions 

 are understood the results are likely to be misleading and of question- 

 able value. 



SENDING SAMPLES. 



All samples should be addressed to Dr. J. B. Lindsey, Mass. 

 Agricultural Experiment Station, Amherst, Mass., (shipping tag accom- 

 panying this circular.) The samples will be referred to the head of 

 the fertilizer or feed division, who will see that the same are examined 

 and make his report direct to the sender. It is important that all 

 samples be sent as soon as drawn. Express charges should always 

 be prepaid. 



