198.    BENOIT, R.  [Thermomagnetic Study of Boroferrites.]  Compt. rend., vol. 231, 1950, pp. 1216-1218; Chem. Abs., vol. 45, 1951, p. 2355.

                  Magnetic susceptibilities were determined in the range 0°-1,100° for boroferrites, B₂O₃·Fe₂O₃·xMO, in which M=Mg, Cu, Co, Ni, and Fe; x=2 in the Mg compound and 4 in the others.  The Curie constants were, respectively, 8.66, 10.5, 19.8, 16.9, and 20.6.  (I) decomposed above 1,100°.  Cu (II) changed to Cu (I) at 890°.

                  BENSMANN, C. H. N.  See abs. 3393.

                  BENSON, H. E.  See abs. 646, 647, 648.

                  BENTON, A. F.  See abs. 3681.