Congenital Anomalies of the Viscera: Their Embryological Basis.

Reviews 169 obstruction is not 'muscular' or tubular, but in the author's opinion is fibrous and annular or diaphragmatic.In 30-40 % of cases of Fallot's tetralogy there is valvar, not infundibular, obstruction although the infundibulum is reduced.In about 20 % infundibular and valvar obstruction co-exist.The opposition to acceptance that pulmonary valvar stenosis occurs quite frequently in Fallot's tetralogy is removed by Sir Russell's figures.The monograph is handsomely produced and profusely and clearly illustrated.It will be essential for thoracic surgeons, for morbid anatomists and not a few anatomists.Unlike Sir Arthur Keith's severe strictures upon the standard treatises of 1904 dealing with the function and diseases of the heart this excellent work does lie within the field of practical medicine and will be immensely useful to physician and physiologist alike.