Philosophical Magazine. 6 th ser.

1925. V. 50 № 295,296,297,298,299,300

          V. 49 № 289,290,291,292,293,294

1924. V. 48 № 283,284,285,286,287,288

          V. 47 № 277,278,279,280,281,282

1923. V. 46 № 271,272,273,274,275,276

          V. 45 № 265,266,267,268,269,270

1922. V. 44 № 259,260,261,262,263,264

          V. 43 № 253,254,255,256,257,258

1921. V. 42 № 247,248,249,250,251,252

          V. 41 № 241,242,243,244,245,246