AGRICULTURAL ANALYSIS 



PART I 



OPERATIONS USED IN QUANTITATIVE 

 ANALYSIS 



The student who has hitherto confined his attention to 

 general experiments and qualitative analysis, will find that 

 quantitative work demands a new kind of skill. 



It is really an art arising from the Science of Chemistry, 

 and just as every other art has its own special technique, so the 

 art of quantitative analysis can only be acquired by those who 

 have mastered certain simple operations, and have become 

 familiar with certain instruments. The chief of these operations 

 are set out, and the principal instruments are described, in the 

 following paragraphs : 



i. The balances which are used in different laboratories 

 vary so considerably that it is better to leave all explanation of 

 their working in the hands of the teacher. 



2. The weights, however, are generally of one description. 

 In the assay of metalliferous ores the grain is usually taken as 

 a standard of weight, but for all the purposes of the agricultural 

 chemist the French or metric system will be found most 

 convenient. 



b 



