Visit-Professors

The Universities of Manchester (England) and Basle (Switzerland) have introduced a system of exchange professors by which the visiting professors do not change places simultaneously, but rather alternate as each others' guests--thus deriving the advantages of contact and informal discussion.

At Basle, Prof. W. E. Weiss of Manchester has just finished a season as guest of Prof. Senn. The Swiss had opportunity to attend his course of lectures on the structure of fossil plants found in the Lancashire coal mines. Also, he was an honorary member of the Basle faculty, he attended its meetings, learned its methods.

Next season, Prof. Senn will be guest at Manchester. He will lecture to the English students on the physiology of Alpine plants. This scheme of successive visits, as opposed to simultaneous exchange, is less disrupting to the organization of a department than is the installation of a new official, strange to the ways of his hosts.