The Society convened in the hall of the Boston Society of Natural History, and was called to order at 10.15 a m by the President, Sir J. William Dawson. The President introduced Professor William H. Niles, the President of the Boston Society of Natural History, who, in a cordial address of welcome, said that the old Society, of sixty-four years’ standing, welcomed to the city and to its building the new Society of six years’ age, representative of the entire continent of North America. He reviewed the progress which had been made in scientific knowledge and in its public appreciation since the founding of the organization in whose building this meeting was held, and contrasted the time when Sir Charles Lyell was in Boston and public feeling was so strongly against the conclusions of geological study, and the present day, when the results of such . . .