Reports made to the directors of the London (Watford) Spring Water Company, on the results of microscopical examinations of the organic matters and solid contents of waters supplied from the Thames and other sources: by E. Lankester and P. Redfern. Together with a chemical report on the quality of various specimens of water from Chalk Springs near Watford: by T. Clark and John Smith. [With a preface by S. C. H., i.e. S. C. Homersham.]
Edwin LANKESTER