When we arrived at the hall we found a much greater concourse than I had expected. A line of electric broughams discharged their little cargoes of white-bearded professors, while the dark stream of humbler pedestrians, who crowded through the arched doorway, showed that the audience would be popular as well as scientific. Indeed, it became evident to us as soon as we had taken our seats that a youthful and even boyish spirit was abroad in the gallery and the back portions of the hall. Looking behind me, I could see rows of faces of the familiar medical student type. Apparently the great hospitals had each sent down their contingent. The behavior of the audience at present was good-humored, but mischievous. Scraps of popular songs were chorused with an enthusiasm which was a strange prelude to a scientific lecture, and there was already a tendency to personal chaff which promised a jovial evening to others, however embarrassing it might be to the recipients of these dubious honors.