Robert Ellis Dudgeon 1820 – 1904 Licentiate of the Royal College of Surgeons in Edinburgh in 1839, Robert Ellis Dudgeon studied in Paris and Vienna before graduating as a doctor.Robert Ellis Dudgeon practiced at the London Homeopathic Hospital and specialised in Optics, writing prodigiously on the subject and inventing spectacles which could be used under water (he was a keen swimmer, volunteer and golfer).In 1881 the English physician and homeopath, Robert Ellis Dudgeon (1820-1904) introduced a new, highly portable Sphygmograph. Dudgeon’s sphygmograph was strapped to the wrist. The pulse at the wrist caused a metal strip to move a stylus, transmitting a record of the pulse onto smoked paper.He was the first editor ofBritish Journal of Homeopathy from 1845-1884. Accordingly, he became a homeopath c1843 under the influence of a semester spent in the Medical School in Vienna and then under John James Drysdale in Liverpool. He died before any of the information about Samuel Hahnemann‘s later work was published in 1922. Yet Robert Ellis Dudgeon, as a translator of German works, must have been aware of Samuel Hahnemann‘s use of liquid doses, centesimals, LM’s and serial dilution in water, techniques which were all brought in with the 5th Edition of the Organon in the 1830′s.