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Photographs: purple flowered dwarf beans

Photographs, negatives and slides: Seed size, Newcastle 1956 MS and normal bean flowers Frost damaged beans Outdoor freezing cabinet test 1963 Snow cover and frost damage X-rays of bean flowers 8 leaved clover from Macclesfield Advertizer Jean Wellbank beans 1955 NIAB Misc 1954 F2 bean flower 1984

'U=bees' 'U1 and U2 for R P Hawkins out of Sladen's book' U9 and U10 from Bertlehem Rennes 1960s'

Correspondence. Research, notebooks, manuscripts. Collection of glass slides. Collection of scientific phoptographs. Other: biographical/misc.

14 letters between Roy Markham and David Lipkin: ATP hydrolysis, adrenosine triphosphate, Dates RM to DL: 26 Jan, 24 Mar, 28 May, 2 Jul, 17 Oct, 29 Dec (x2). DL to RM: 9 Jan, 26 Jan, 24 Jun, 17 Jul, 8 Oct, 23 Dec 1959 and 31 Mar 1960.

Letter from RM to DL, ammonium cyanide, amino acid analyser, nucleic acid of TYM.