The multigraphing of these notes has been done at the request of members of the class whose wish it was to have some permanent record of the lectures, even if only in schematic form. In contrast to the fullness and vividness of the lectures, the notes are disappointingly “thin,” but as I could find no way of counteracting this defect, I must invoke the good will of the class and ask that the notes be looked upon merely as an outline serviceable to the memory.
For the sake of convenience of form, I have presented the lectures, questions, and discussions for the most part as though in the words of the speakers, but in point of fact, only the written questions are literally so exact. For the rest, I have not tried to do more than cover as completely as possible the sense of what was said.
The copies of the diagrams are not my work, but are the valuable contribution of another member of the class. Others still have helped me greatly in supplementing the material and in the work of correction. The whole has been reviewed and corrected by Dr. Jung.
| Zurich, November 29th, 1925. | CARY F. DE ANGULO |