Images Dated 14th March 2011

19th-century alga cyanotype

19th-century alga cyanotype. Cyanotype of the algae Cystoseira fibrosa, as produced by British botanist Anna Atkins (1799-1871). Cystoseira is a seaweed, a brown alga found in temperate Northern Hemisphere seas and oceans. The cyanotype blueprinting imaging technique was invented by British astronomer John Herschel (1792-1871). This cyanotype was published in part VII of Photographs of British Algae (1843-1853) by Atkins, who used also used the photogenic drawing method devised by William Henry Fox Talbot (1800-1877). This image is from an edition of the book owned originally by Herschel

© SPENCER COLLECTION/NEW YORK PUBLIC LIBRARY/ SCIENCE PHOTO LIBRARY

Harlech Castle, Wales

Harlech Castle, Gwynedd, North Wales, was built between 1283 and 1289 for King Edward I as part of his iron ring of castles. It was seized by Owain Glyn DA?r in 1404 and held successfully by him for four years. Now a World Heritage Site. Illustration from Picturesque Europe - The British Isles published by Cassell Petter & Galpin in 1875 (price 2/6d)

© Linda Steward

Black-tailed godwit (Limosa limosa) taking off from tidal pool, Snettisham RSPB reserve

Black-tailed godwit (Limosa limosa) taking off from tidal pool, Snettisham RSPB reserve, Norfolk, UK, March. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? The black-tailed godwit's bill changes colour, its base being yellow to orange in the breeding season, but pink in the winter

© www.naturepl.com

2020vision, 2020vision Book Plate, 2020vision Exhibition, Behaviour, Birds, England, Europe, Exhibition, Flying, Godwits, Limosa Limosa, Picday, Reflections, Reserve, Scolopacidae, Take Off, Uk, Vertebrates, Waders, Water, Wetlands