After a foreword from the Swiss Ophthalmological Society and from the Festschrift Committee, which includes the following names, Drs. M. Bücklers, A. Franceschetti, O. Haab, W. R. Hep, R. Klainguti, K. Rehsteiner, H. Schläpfer, W. F. Schnyder, H. Wagner, A. Wiederkehr and H. Zangger, Drs. Schnyder and Rehsteiner give an interesting description of Professor Vogt's life as an introduction to this Festschrift, of which the following is an abstract.
As a student Vogt was devoted to natural sciences. He received his ophthalmic training as assistant to Mellinger and then became director of the department of ophthalmology of the cantonal hospital in Aarau, which under his guidance rapidly grew in importance. His first publication was on the effect of ultraviolet rays on the eye. He gave the first correct interpretation of erythropia. Then followed studies on the ultra-red rays and their effect on the eye, which are important in explaining the