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{{Infobox scientist
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| name  = Bertha Swirles
| image = Bertha_Swirles_Lady_Jeffreys.jpg
| image_size = 200px
| caption    = Bertha Swirles in 1962
| birth_date  = 22 May 1903
| birth_place = [[Northampton, England|Northampton]]
| death_date  = 18 December 1999
| death_place =
| residence  =
| nationality = [[UK|British]]
| field = [[Physicist]]
| work_institution =
| alma_mater      =
| doctoral_advisor  = [[Max Born]]<br>[[Ralph Howard Fowler]]
| doctoral_students =
| known_for  =
| prizes    =
}}
'''Bertha Swirles, Lady Jeffreys''' (22 May 1903 &ndash; 18 December 1999) was a British physicist who carried out research on [[Quantum mechanics|quantum theory]], particularly in its early days. She was associated with [[Girton College, Cambridge|Girton College]], [[University of Cambridge]], as student and Fellow, for over 70 years.
 
Bertha Swirles was born in [[Northampton, England|Northampton]] in 1903, attended [[Northampton School For Girls|Northampton School for Girls]] and then went up to Girton College, in 1921, to read Mathematics, graduating with first class Honours. She became a research student of [[Ralph Fowler]], one of a distinguished company of his students that included [[Paul Dirac]] and [[Subrahmanyan Chandrasekhar]]. She was awarded her PhD in 1929, by which time she was an Assistant Lecturer in Manchester. She followed with similar posts in Bristol and then at Imperial College (then the Royal College of Science), London in the 1930s.<ref>{{cite journal|last=Field|first=John|title=David Tabor. 23 October 1913 - 26 November 2005|journal=Biographical Memoirs of Fellows of the Royal Society|date=12 December 2008|volume=54|pages=425–459|doi=10.1098/rsbm.2007.0031|url=http://rsbm.royalsocietypublishing.org/content/54/425.full.pdf+html?sid=41959c71-dad0-4b04-b27d-e5e721f90568|accessdate=26 October 2012}}</ref><ref>{{cite news|last=Williams|first=R. M.|title=Obituary: Bertha Jeffreys|url=http://www.independent.co.uk/arts-entertainment/obituary-bertha-jeffreys-1134045.html|accessdate=26 October 2012|newspaper=The Independent|date=22 December 1999}}</ref>  She married [[Harold Jeffreys]] in 1940, and became Lady Jeffreys upon his knighthood in 1953.
 
== Some early scientific publications ==
 
* Bertha Swirles, ''The internal conversion of <math>\gamma</math>-rays'', Proceedings of the Royal Society of London, Series A, Vol. '''116''', No. 774, pp. 491-500 (1927). [http://www.jstor.org/view/09501207/ap000484/00a00110/0] This paper dates from the time when Bertha Swirles was Yarrow Research Student at Girton College.
* Bertha Swirles, ''The internal conversion of Gamma-rays. &mdash; Part II'', Proceedings of the Royal Society of London, Series A, Vol. '''121''', No. 787, pp. 447-456 (1928). [http://www.jstor.org/view/09501207/ap000497/00a00310/0] This paper dates from the time when Bertha Swirles was Hertha Ayrton Research Fellow at Girton College.
* Bertha Swirles, ''The coefficients of absorption and opacity of a partially degenerate gas'', Proceedings of the Royal Society of London, Series A, Vol. '''141''', No. 845, pp. 554-566 (1933). [http://www.jstor.org/view/09501207/ap000555/00a00070/0] 
* Bertha Swirles, ''The relativistic self-consistent field'', Proceedings of the Royal Society of London, Series A, Vol. '''152''', No. 877, pp. 625-649 (1935). [http://www.jstor.org/view/00804630/ap000587/00a00080/0]
* Bertha Swirles, ''The relativistic interaction of two electrons in the self-consistent field method'', Proceedings of the Royal Society of London, Series A, Vol. '''157''', No. 892, pp. 680-696 (1936). [http://www.jstor.org/view/00804630/ap000602/00a00160/0]
* [[Douglas Hartree|D. R. Hartree]], W. Hartree, and Bertha Swirles, ''Self-consistent field, including exchange and superposition of configurations, with some results for Oxygen'', Philosophical Transactions of the Royal Society of London, Series A, Vol. '''238''', No. 790, pp. 229-247 (1939). [http://www.jstor.org/view/00804614/ap000684/00a00000/0]
 
== Book ==
 
* Sir Harold Jeffreys and Bertha Swirles (Lady Jeffreys), ''Methods of Mathematical Physics'', third revised edition (Cambridge University Press, 1956 &mdash; reprinted 1999). This book, first published in 1946, is commonly referred to as ''Jeffreys & Jeffreys''. ISBN 0-521-66402-0, ISBN 978-0-521-66402-8.
 
== Some biographical sketches by Bertha Swirles ==
 
* Bertha Swirles, ''[[John Arthur Gaunt]] (1904-1944)'', Notes and Records of the Royal Society of London, Vol. '''44''', No. 1, pp. 73-79 (1990). [http://www.jstor.org/view/00359149/ap020075/02a00050/0]
* Bertha Swirles, ''Reminiscences and Discoveries: Harold Jeffreys from 1891 to 1940'', Notes and Records of the Royal Society of London, Vol. '''46''', No. 2, pp. 301-308 (1992). [http://www.jstor.org/view/00359149/ap020080/02a00080/0]
 
== Obituaries ==
 
* R. M. Williams, ''Obituary: Bertha Jeffreys'', The Independent (London), Wednesday, 22 December 1999. [http://www.physics.ucla.edu/~cwp/articles/jeffreys/jeffreys-obituary.html][http://www.independent.co.uk/]
* Mary Walmsley, ''Lady Jeffreys 1903-1999'', The Mathematical Gazette, Vol. '''84''', No. 500, pp. 321-323 (2000). [http://links.jstor.org/sici?sici=0025-5572(200007)2%3A84%3A500%3C321%3AOLJ1%3E2.0.CO%3B2-B]
* J. A. Hudson, ''Lady Bertha Swirles, 1903-1999'', [[Astronomy & Geophysics]], Vol. '''41''', No. 3. 36-37 (2000). [http://www.ingentaconnect.com/content/bsc/aag/2000/00000041/00000003/art00020]
 
== References ==
{{Reflist}}
 
== External links==
*[http://cwp.library.ucla.edu/Phase2/Jeffreys,_Bertha_Swirles@844118401.html CWP at UCLA: Bertha Swirles, Lady Jeffreys]
* Portrait by Julia Hedgecoe, 19 March 1998, [http://www.npg.org.uk/live/search/portrait.asp?search=ss&sText=Bertha+Swirles&LinkID=mp11769&rNo=0&role=sit National Portrait Gallery, London].
 
{{Authority control|VIAF=94189362}}
{{Persondata <!-- Metadata: see [[Wikipedia:Persondata]]. -->
| NAME              =Swirles, Bertha
| ALTERNATIVE NAMES =
| SHORT DESCRIPTION = British seismologist
| DATE OF BIRTH    = 22 May 1903
| PLACE OF BIRTH    =
| DATE OF DEATH    = 18 December 1999
| PLACE OF DEATH    =
}}
{{DEFAULTSORT:Swirles, Bertha}}
[[Category:1903 births]]
[[Category:1999 deaths]]
[[Category:Alumni of Girton College, Cambridge]]
[[Category:Fellows of Girton College, Cambridge]]
[[Category:English physicists]]
[[Category:People from Northampton]]
[[Category:British seismologists]]
[[Category:Academics of Imperial College London]]

Latest revision as of 15:39, 19 November 2014

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