THE EMBRYOLOGY AND ETIOLOGY OF TUMOURS 69
development waiting for recognition in our Universities,* —one whose continued neglect and exclusion will continue to revenge itself upon mankind, as it has already done in the past, by a corresponding retardation of priceless knowledge—so there is also (a branch of the foregoing, and only to be understood in the light of it) an important field of abnormal embryology, largely represented by the tumours and their problems—a knowledge of which can only be advanced by aiding and fostering the former.
In his magnificent monograph upon tumours Borst writes eloquently of this pathological embryology as a large and interesting region of knowledge, through whose mystical portals we penetrate at the moment with feebly burning torches of comprehension (Erkenntniss), but with the highest expectations. The torches here spoken of may be identified as those of the science of normal embryology, than which there is possibly no department of knowledge of more moment to mankind, and by whose light alone these dark, but to mankind gravely important, regions can be illumined adequately.
In studying the views presently advocated as to the etiology of tumours, the following points are apparent to the embryologist. In their basis, so far as this is embryological, they are but modifications of the Remak-
* The writer seeks no such post, although aware that in the last two years of his life the creation of such a University Chair in London for him was the cherished wish of the late George Bond Howes, Professor of Zoology in the Royal College of Science, South Kensington. But it may be pointed out that, unlike Germany and the United States, Great Britain has to-day not a single University Chair of Embryology. Had such posts been as common for the last fifty years as those in many other subjects of infinitely less importance to mankind and to medicine, the problems of cancer might conceivably have been solved long ago, and possibly thousands of human beings saved from the torments of malignant disease.