Paper entitled 'The Relation between the Refraction of the Elements and their Chemical Equivalents'.

English physical chemist (1827-1902), fellow of the Royal Society and father-in-law of the first Labour Prime Minister, Ramsay MacDonald. Seven pages, octavo (paginated 140-146). Unbound. Stitched. In original grey printed wraps. With dogeared, worn corners (one missing) and on paper discoloured with age. Wraps worn and grubby and with slight loss at bottom. INSCRIBED on front wrap 'With J H Gladstone's kind regds'. Front wrap stamped 'SOTHERAN. SACKVILLE STREET. LONDON'.