LysIxMEter Experiments 91 



described in Bulletin 107 (revised) of the United States Bureau of 

 Chemistry, pages 15 and 16. 



METHODS FOR THE CHEMICAL ANALYSIS OF QUICKLIME AND LIMESTONE 



Calcium and magnesium. — A 5-gram sample was dissolved in hydro- 

 chloric acid and made up to 500 cubic centimeters, and a 25-cubic- 

 centimeter aliquot part was taken for the determination of calcium and 

 magnesium according to the official method described in Bulletin 107 

 (revised) of the United States Bureau of Chemistry, pages 15 and 16. 



METHODS FOR THE ANALYSIS OF POTASSIUM SULFATE 



Potassium. — Determination of potassium was by the official method for 

 the determination of potassium in potash salts, described in Bulletin 107 

 (revised) of the United States Bureau of Chemistry, page 11. 



91 



