1. 1W. W. Coffeen , "Ceramic and Dielectric Properties of the Stannates";seepp.207 -14 , this issue.
2. 2(a)Wainer Eugene , "High Dielectric Material and Method of Making," U. S. Pat. 2,399,082, 1946 ;Ceram. Abstr., 1946, June, p.110.
3. (b)Wainer Eugene , "High Dielectric Material and Method of Making," U. S. Pat. 2,402,515, 1946 ;Ceram. Abstr., 1946, August, p.143.
4. (c)Wainer Eugene , "High Dielectric Material and Method of Making," U. S. Pat. 2,402,518, 1946 ;Ceram. Abstr., 1946, August, p.143.
5. (d)Wainer Eugene , "High Dielectric Material," U. S. Pat. 2,452,532, 1948 ;Ceram. Abstr., 1949, April, p. 110a.