Professor Tingley’s method for those he found really interested in scientific study was to encourage them to look outside the book. There was where I had already found my joy; but I suspected it was the willful way, that the true way was to know first what was in the books. Here in Professor Tingley’s classes you were ordered to go and see for yourself. He used to tell us a story of his first experience at Penikese. A stone was put before him, a round water-washed stone, on which he was to report. He looked at the stone, turned it over. There was nothing to report. “It is not the outside, it is the inside of things that matters,” said Agassiz. And in the laboratory that became our watchword: Look inside. Discovering my interest in the microscope, I was not only allowed, I was urged to use the magnificent binocular belonging to the college, was given the free run of the laboratory along with a few as crazy as myself. Here my most exciting adventure apart from what I found under the microscope came from actually having my hands on a “missing link.” Evolution, to which I was clinging determinedly, could only be established, I realized, by discovering the links. There was one peculiar to the waters in our valley, the _Memopomo Alleghaniensis_, a creature twelve to fifteen inches long with gills and one lung, able to live in the water or mud as circumstances required. The mud puppy, as it was appropriately called, was slimy, loathsome, but I worked over it with awe. Was I not being admitted into the very workshop of Nature herself—seeing how she did it? Professor Tingley took his little group of laboratory devotees into his home circle. He and Mrs. Tingley were housed in a wing of Bentley Hall—big rooms built for classrooms. They had no children, and in the years of their study and travel they had gathered about them things of beauty and interest. The atmosphere of those rooms was something quite new and wonderful to me. It was my first look into the intimate social life possible to people interested above all in ideas, beauty, music, and glad to work hard and live simply to devote themselves to their cultivation.