Raphael Meldola: the Essex Field Club papers at Imperial College HILARY McEWAN Special Collections Archivist, Imperial College London "Reviewing Meldola's life and work is rather like rotating a kaleidoscope containing as bright objects some three or four branches of science and other accomplishments " General Introduction The Meldola Medal2, Meldola's Blue3, these are the accolades which have preserved the memory of Raphael Meldola (1849 - 1915) as a first rate chemist. It is only natural that he should be remembered as such, since the chemistry of dye manufacturing was the field in which he was employed, and made many valuable discoveries which were the subject of numerous published articles. Yet read any profile of his life and it is impossible not to see that here was a man equally engaged and knowledgeable in the field of natural history. Nature esteemed him to be "one of the most notable men of science of our time" yet to members of the Essex Field Club he is perhaps best known as a founder member and first President of the Club. Collection and Custodial History The papers that Meldola left to the care of the Field Club were originally held at the Passmore Edwards Museum (now The Newham Museum Service), but when the Museum decided to concentrate its focus on material specifically relating to the Newbarn Borough it was felt that the papers would be better held elsewhere. Meldola had many strong connections with the constituent colleges of Imperial College London which already holds a number of his notebooks and correspondences. Now the two collections sit together at Imperial, alongside those of some of his fellow students and work colleagues, such as S.R Thompson4 and H.E. Armstrong5. Spanning the years 1862 - 1915, the Meldola collections number approximately 2500 items. Mainly correspondence written to Meldola, many are from other notables of his day including politicians and scientists. They have been recently catalogued and arc now available for public consultation. The Field Club material is arranged in 6 series as follows. General Correspondence 1862 - 1915; Correspondence: Scientific Autograph Collection 1 1864 - 1907; Epping Forest Thinning Correspondence 1894- 1895; Sylvester Memorial Correspondence 1897- 1900; Spencer Memorial Coitcspondaicc 1904 - 1908; Press Cutting and Autographs. The material already at the College concern Sir John Evans Portrait Fund 1898 - 1900; Maccabaeans Dinner 1905; Perkin Jubilee 1906; Notebooks 1866 - 1906 and were transferred to the archives from the Royal Institute of Chemistry. Within the space of this article the broad range of people with whom Meldola corresponded shall become clear. However, the main focus will be on those letters that show him at work as a committed and enthusiastic natural historian. But first a very brief summary of his life and works is appropriate. Essex Naturalist (New Series) 21 (2004) 19