Giacomo Ciamician (1857-1922) was a pioneer in the study of photochemical reactions and their applications. However, at the time, the light sources in the scientific laboratories were too weak to conduct meaningful experiments. He therefore had to use sunlight for his researches. To this end, he used a terrace of the Institute of Science of the University of Bologna. In this picture, dating from the first decade of the 20th century, he inspects the flasks that contained the organic substances whose light induced transformations he wanted to study together with his friend and collaborator Paul Silber (1851-1932).
Naturalist Robert Atkinson embarked on a survey of Hebridean Islands in the mid-1930s to survey and count the Leach's fork-tailed petrel. He landed on St Kilda in July 1938, which had been evacuated in 1930. Atkinson captured the transition and re-wilding of the island during his search for the rare petrel, going into vacant cottages and buildings. This gentle photograph captures a small wren resting in the warm light of a window in the old School House.
