ILLUSTRATIONS. 
PuatTe I. O-nitrophenol with ¥5 equivalent of sodium ethoxide. ooo 
molar solution. Thickness of layer, 32 to 2 millimeters. 
II. O-nitrophenol with 1 equivalent of sodium ethoxide. Yoo9 molar 
solution. Thjckness of layer, 32 to 2 millimeters. 
III. P-nitrosophenol with 1 equivalent of sodium ethoxide. ooo 
‘'molar solution. Thickness of layer, 32 to 2 millimeters. 
IV. P-nitrophenol with %o equivalent sodium ethoxide. 009 molar 
solution. Thickness of layer, 32 to 2 millimeters. 
TEXT FIGURES. 
Fig. 1. P-nitrophenol=full curve. 
P-nitrophenol with 9 equivalent of sodium ethoxide=dot curve. 
P-nitrophenol with 4% equivalent of sodium ethoxide=dot and dash 
curve. 
P-nitrophenol with 1 equivalent of sodium ethoxide=dash curve. 
2. P-nitrosophenol=full curve. 
P-nitrosophenol saturated with HCl=dot curve. 
P-nitrosophenol with 49 equivalent of sodium ethoxide=dot and 
dash curve. 
P-nitrosophenol with 1 equivalent of sodium ethoxide=dash curve. 
Se O-MitEO PHENO lesen eee a 
O-nitrophenol with trace HCl........... t =upper full curves. 
O-nitrophenol with 49 equivalent of sodium ethoxide=dot curve. 
O-nitrophenol with % equivalent of sodium ethoxide=dot curve. 
O-nitrophenol with 1 equivalent of sodium ethoxide=lower full 
curve. 
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