Photographs of cloud forms by Charles Piazzi Smyth: volume 1 100 enlarged positive photographic prints of cloud forms taken at Clova, Ripon between 4 March 1892 and 28 April 1893. At beginning of the volume contains introductory note; 1. On the more deeply seated principles proposed to be observed for. 2. On the practical methods followed Follwed by an index to the photographs arranged in chronological sequence though often with large irregular gaps between. Each photograph is followed by meteorological observations at the time the photograph was taken 1892-1893