ILLUSTRATIONS 



Plate I 



Yellow phthaloxime. 1/1000 molar solution. Thickness of layer, 32 to 2 

 millimeters. 



Plate II 



Fig. 1. Potassium salt of white phthaloxime in 90 per cent alcohol. 1/100 

 molar solution. Thickness of layer, 1, 2, 4, 6, 8, 10, 12, 14, 16, 

 18, 20, 22, 30, 50, 75, and 100 millimeters. 

 2. Silver salt of white phthaloxime in pyridine. 1/100 molar solution. 

 Thickness of layer, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 

 20, and 22 millimeters. 



TEXT FIGUEES 



Fig. 1. Full curve = white phthaloxime. 

 Dot curves yellow phthaloxime. 

 Dash curve =benzoate of white phthaloxime. 



2. Full curves = white phthaloxime with ^, J, J, J, and 1 equivalent 



of sodium ethoxide. 

 Dot curves = yellow phthaloxime with corresponding alkali. 



3. Salts of white phthaloxime in 90 per cent alcohol. 

 Full curve = potassium salt. 



Dash curve = sodium salt. 



Dot curve = barium salt. 



Dash and dot curves ammonium salt. 



4. Full curve = white phthaloxime in pyridine. 



Dash curve = white phthaloxime in 50 per cent pyridine and 50 



per cent water. 

 Dot curve = silver salt of white phthaloxime in pyridine. 



5. Salts of white phthaloxime in pyridine containing 14 per cent water. 

 Full curve = silver salt. 



Dash curve = potassium salt. 



Dot curve = sodium salt. 



Dash and dot curve = ammonium salt. 



6. Full curve = phthalhydroxamic acid. 

 Dash curve = phthalylphenylhydrazine. 

 Dot curve=anilidophthalamic acid. 



191 



