Born at Liverpool on October 4th, 1862, the son of Edward Robert Bickersteth (qv); was educated under Dr Hornby at Eton, which he entered in 1872. He was admitted a Pensioner at Trinity College, Cambridge, on June 13th, 1881, and graduated BA with first-class honours in the Natural Science Tripos in 1884. He then entered St Bartholomew’s Hospital, where he was House Surgeon. After being a Clinical Assistant at the Throat Hospital, Golden Square, and the Royal Ophthalmic Hospital, Moorfields, he was elected Assistant Surgeon to the Royal Liverpool Infirmary, representing the third generation of his family on the staff of that institution. In due course he became full Surgeon, and, on his resignation in 1921, Consulting Surgeon. His attention was specially directed to urology, and he was elected a Corresponding Member of L’Association française d’Urologie and a Member of L’Association Internationale d’Urologie. He was distinguished as a clinical teacher and lecturer on surgery, and was Examiner in Surgery at the Liverpool University. At the Liverpool Medical Institution he was Treasurer and Vice-President. At the Liverpool Meeting of the British Medical Association in 1912 he was President of the Section of Surgery. From 1914-1918 he served as Major RAMC(T) at the 1st Western General Hospital, and later at the 57th General Hospital in France. Whilst in practice he lived at 4 Rodney Street; on retirement he went to Outgate, Ambleside. He died at Bournemouth on February 28th, 1924, and was buried at Kirkby Lonsdale, where his great-grandfather had practised, leaving a widow, three sons, and two daughters. Dr George Luys in 1901 at the Laboisière Hospital of Paris had devised an instrument for separating in the bladder the urine from each kidney. Bickersteth visited Paris in October, 1903, and on February 4th, 1904, published his first communication on the intravesical separation of the urine1 at the Liverpool Medical Institution, which was followed by later accounts of further experience with the method. In his paper on kinked ureter2 he explained how the ureter immediately below a hydronephrotic kidney is found sharply kinked so that its lumen becomes obstructed. He gave three diagrams in illustration of this occurrence owing to an abnormal accessory renal artery, which may spring direct from the aorta below the level of the main renal artery. In a few cases he had divided this artery and relieved the hydronephrosis. Publications:- “Intravesical Separation of the Urines coming from the two Kidneys.” – *Lancet*, 1904, i, 437, 859. *Brit. Med. Jour.,* 1904, ii, 837. “Kinked Ureter.” – *Proc. Roy. Soc. Med.* (Surg. Sect.), 1913-14, vii, 259.