Contents of History of Physics Group Newsletter
No 28 October 2010

Editorial		2
News	New Centre for History of Physics opens	3
Meeting held 24th July Oxford
	Poynting, JJ Thmson,Lodge and McAuley: Is Poynting's Circuit Flux Real?  by John Roche	5
	Debates over Ampère's Law  by Gregor McLean	12
Feature articles
	Early Days in Particle Physics by David Falla	33
	Crystallography before computers, or : How we Summed Our Fourier Series  by Stephen C. Wallwork	43
	Liquefaction of Gases  by Peter Ford	49
Forthcoming Meetings		48
Committee and contacts		51