Further Kew Observatory material is to be found at classmark RGO 66, Kew Observatory papers; and RGO 67, Kew Observatory solar photographs. Further records of solar observations can be found in RGO 50, RO and RGO Solar Plates; RGO 51, RO and RGO Solar Plates Contact Prints; RGO 58, Heinrich Samuel Schwabe: sunspot drawings; RGO 64, RGO Solar Department: papers; RGO 65, RGO Herstmonceux Solar Records: Lyot filter negative films; RGO 81, Observations of the minor planet Eros to determine the solar parallax: papers and records; RGO 138, RGO Solar Eclipse Plates and Photographs; RGO 143, Royal Observatory, Cape of Good Hope Solar Records: Lyot filter negative films and records; RGO 144, Stonyhurst College and Zurich Observatories: sunspot drawings; RGO 157, RGO Solar Observation Records (including photoheliograph registers); RGO 169, Royal Observatory and RGO Solar Eclipse expeditions: records; and RGO 202, Ely Observatory Solar Plates Contact Prints: from Canon William Selwyn's observatory.