... (1) R. Stolle, J. prakt. Chem., 11, 68, 137 (1903); 11, (2) R. Stolle and L. Gutmann, J. prakt. Chem., 11, 69, 69,151,481 (1904). 509 (1904). ... Page 3. 4412 GECHELE AND PIETRA VOL. 26 and 0.11 mole (5.5 g.) of hydrazine hydrate gave 31 g. of crude reaction product. ...