ELISHA MITCHELL SCIENTIFIC SOCIETY. 81 



soluble in water. They were washed with alcohol and 

 for analyses I. and II. were pressed between filter 

 paper. III. and IV. were dried over sulphuric acid. 

 The results were as follows: 



or calculated on a dry basis: 



Again preparations were made as before. I. was 

 dried between filter paper, II. over sulphuric acid, III. 

 was pressed between filter paper and then dried over 

 sulphuric acid, IV. was dried a long-time over sulphuric 

 acid. The analyses crave the following-: 



or calculated on a dry basis: 



Zr 56.93 57.23 59.34 62.14 

 CI 43.07 42.77 40.66 37.86 



Lasth' he allowed a solution of the chloride to evapo- 

 rate over sulphuric acid, washed the crystals obtained 

 with alcohol and pressed them between filter paper. 

 Analyses crave: 



