Referee's report by James Hartley Ashworth, on a paper 'Experiments on the egg-laying instincts of the sawfly, Pontania salicis Christ., and their bearing on the inheritance of acquired characters; with some remarks on a new principle in evolution' by John William Heslop-Harrison

James Hartley Ashworth, Referee's report by James Hartley Ashworth, on a paper 'Experiments on the egg-laying instincts of the sawfly, Pontania salicis Christ., and their bearing on the inheritance of acquired characters; with some remarks on a new principle in evolution' by John William Heslop-Harrison, December 1926, RR/34/2, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/rr_34_2/referees-report-by-james-hartley-ashworth-on-a-paper-experiments-on-the-egg-laying-instincts-of-the-sawfly-pontania-salicis-christ-and-their-bearing-on-the-inheritance-of-acquired-characters-with-some-remarks-on-a-new-principle-in-evolution-by-john-william-heslop-harrison, accessed on 13 May 2025

https://makingscience.royalsociety.org/items/rr_34_2/referees-report-by-james-hartley-ashworth-on-a-paper-experiments-on-the-egg-laying-instincts-of-the-sawfly-pontania-salicis-christ-and-their-bearing-on-the-inheritance-of-acquired-characters-with-some-remarks-on-a-new-principle-in-evolution-by-john-william-heslop-harrison

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