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New Fruits, Raised and Distributed by Laxton Bros., Bedford Ltd.

Documents and correspondence, includes maps and photographs

Reprint, research notes and correspondence re 'New Data on the Linkage Map of Streptomyces coelicolor' , David A Hopwood (1965), correspondence with Dr E C R Reeve (Inst. An. Gen, Edinb.)

; Author: Davidson, John; Publication Place: London; Publisher: Bodley Head

New and Choice Chrysanthemums, Show & Zonal Pelargoniums, Dahlias, Fuchsias, Coleus and Greenhouse Plants, Catalogue foe Season 1931 -1932, J W Cole & Son, Midland Road and Westwood Nurseries, Peterborough

3 paintings, 32 b&w photographs (some cut up) and 1 hand-coloured photograph: 1. Painting of a row of 4 flowers (blues, white, deep purple), dated 1 June 1923, 7 June 1924 and June 1924. Back annotated in pencil, 'N atomaria, N. crambeoides etc. with colour notes. 2. Painting of a row of 2 flowers (deep red with white fringe), dated July 1925. 3. Painting of a row of 6 flowers (deep purple, red and white), dated 16 June 1926. Photographs: 22 of rows of flowers (from which paintings based), including one hand-coloured (many of these are cut up); 4 of potted plants (N.insignis and discoidalis), dated June 1923; 6 of rows of leaves labelled 'Crambeodes, Atomaria, Atomaria Atrocaeruled, Dicoidalis, Insignis, Maculata Gradiflora' and N. liniflora, dated June 1923.

Photocopy of a photograph in an article on Nematode pests showing the giant race of Ditylenchus dipsaci on field bean stems.

3 strips of b & w negatives of Salsify, Streptocarpus[?], Trillium, no date.

3 packets of b&w negatives. 1. Nicotiana: 1 b&w neg. strip of 5 frames of individual flowers. 2. Oenothra: 2 b&w neg. strips of Oenothera, 5 frames and 4 frames of capsules. 3. Primula: 1 b&w neg. strip of 4 frames of individual flowers.