Richards and Archibald — Growing^Crystals 





Plate 



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Figure 2. Baric chloride ; 30 diaiii. : 

 exposure 0.04 sec. 



Figure 3. Baric chloride; 30 diam. 

 exposure 0.08 sec. 



FiGuino 4. Sodic nitrate ; 30 diam. 

 exposure 0.10 sec. 





>%^*-«^' 



'iv > < 



Figure 5. Sodic nitrate; 30 diani.; 

 exposure 0.12 sec. 





■^^' 



v\ut 



kill. 



Figure G. Baric cidoride; 110 diam.; 

 exposure 0.10 sec. 





FiGiRT". 7. ( 'M]iric suliihatc; 110 diam.; 

 exposure 0.12 sec. 



