SPONTANEOUS CRYSTALLISATION OF MONOCHLOE ACETIC ACID, ETC. 347 



Concentration. 



8 8 8 8 



same time till it reached T433260 at 28. The crystals of this shower were examined 

 under the microscope and found to be rhombs of /8, having a plane angle of 71, with 

 extinction inclined at about 23 to one side of the rhomb, and the usual interference 



2 Y 2 



