The earth as a clock : being the Halley lecture delivered on 5 June 1939 /
Jones, H. Spencer 1890-1960.,
The earth as a clock : being the Halley lecture delivered on 5 June 1939 / by H. Spencer Jones ... - 32 pages : diagrams ; 23 cm - The Halley lecture, 1939 . - Halley lecture ; 1939. .
http://catalogue.bnf.fr/ark:/12148/cb32288523m uri
41007421
001895190 Uk
Time.
Day.
Planets--Rotation.
Day.
Time.
Earth (Planet)--Rotation.
Earth (Planet)
Astronomy United Kingdom Timekeeper (general)
529:525.31
The earth as a clock : being the Halley lecture delivered on 5 June 1939 / by H. Spencer Jones ... - 32 pages : diagrams ; 23 cm - The Halley lecture, 1939 . - Halley lecture ; 1939. .
http://catalogue.bnf.fr/ark:/12148/cb32288523m uri
41007421
001895190 Uk
Time.
Day.
Planets--Rotation.
Day.
Time.
Earth (Planet)--Rotation.
Earth (Planet)
Astronomy United Kingdom Timekeeper (general)
529:525.31