Career
He was assistant to August Wilhelm von Hofmann (1818-1892) at the Royal College of Chemistry in London. He wrote scientific papers on chemistry until 1865 when he moved to Haslemere and started to study Hemiptera. He wrote:
Monograph of the British Aphides (four volumes, London, 1876-1883).
Monograph of the British Cicadæ or Tettigidae (two volumes, Macmillan & Company, London, 1890-1891).
The Natural History of Eristalis tenax or the Drone-Fly (Macmillan & Company, London, 1895). A Monograph of the Membracidae, with an article by Edward Bagnall Poulton (1856-1943) (Lovell Reeve & Company, London, 1901-1903).
