Richards and Archibald — Growing Crystals 



Plate III 



' " .. ' 't-'J*L-.'. 



^ 



^ 



•^: 



FiGUKE 10. Potiissic iodide; 580 diiiiii. ; exposure 0.17 sec. 



FiGCRK 11. Potassio iodide ; 580diani.; e.xposure 0.25 sec. 



Figure 12. Potassic iodide ; 580 diaiii. ; exposure 0.17 sec. 



m 

 "% 



l'"ii;iri!K \". Potassic iodide ; 580 diani. ; exposure 0.17 sec. 



l"ii;iui: 14. Potassic icnlide ; obOdiaru.; exposure 0.17 sec. 



Figure 15. Potassic iodide ; 580 diam. ; exposure 0.17 sec. 



