St John‘s College Personal Collections

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JeffreysB/J/J299-J314/J299-J312/J310
Item
1971–1973

Part of Papers of Bertha Jeffreys

JeffreysB/J/J208-J269/J214
File
1973

Part of Papers of Bertha Jeffreys

JeffreysB/J/J208-J269/J215
File
1974

Part of Papers of Bertha Jeffreys

JeffreysB/J/J299-J314/J299-J312/J311
Item
1974–1976

Part of Papers of Bertha Jeffreys

JeffreysB/J/J43-J207/J47-J51/J49
Item
1974–1982

Part of Papers of Bertha Jeffreys

JeffreysB/H/H1-H108/H1-H4/H4
Item
1975–1994

Part of Papers of Bertha Jeffreys

1975 item is offprint of 'The early days of ionospheric research' by J.A. Ratcliffe, Phil. Trans. R. Soc. Lond. A vol. 280.

JeffreysB/J/J208-J269/J216
File
1975–1976

Part of Papers of Bertha Jeffreys

JeffreysB/J/J208-J269/J218
File
1977

Part of Papers of Bertha Jeffreys

JeffreysB/J/J208-J269/J219
File
1978

Part of Papers of Bertha Jeffreys

JeffreysB/J/J270-J298/J271
File
1978–1981

Part of Papers of Bertha Jeffreys

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