Some Physical Properties of Nitric Acid Solutions. 105 



Curve VII. Results at 4 per cent, from 70 to 86 per cent., with 

 intersection at 77 '8 per cent. 



70 71 72 73 74 75 76 77 78 79 80 81 62 B5 64 85 S6 

 Percentages (Temp. -4). 



All these curves were drawn originally on the same scale, namely, 

 1 mm. for O'l per cent, and O'OOOl c.c. contraction; only a selection is 

 given as illustrations. 



