The Columbus meeting of the American Association for the Advancement of Science was looked forward to with considerable interest as the first in the new half century of that body. Would the impression and stimulus of the great semicentennial gathering at Boston last year be found to continue, or be followed by a reaction? The meetings west of the Alleghanies are always smaller than the eastern ones, and the brilliancy of the Boston meeting could not be looked for in any interior city. The general expectation was for an "off-year" gathering. But only in point of attendance was this impression verified. The register of those present showed three hundred and fifty-three names--a good number for an interior meeting, very few of the Western gatherings having exceeded it. In all other respects the general feeling of the members indicates that the meeting was notably successful and enjoyable, and the remarks made by the writer a year ago as to the real value of the smaller and less conspicuous meetings he feels to have been well exemplified. It was a scientific working meeting, with enough of social intercourse and attentions to be delightful, but not distracting. In these aspects the "golden mean" was markedly preserved. The arrangements of the local committee for the convenience of the members and the success of the meeting in general were remarkable in their completeness. Nothing seems to have been overlooked, and some advances were made upon any previous year. The daily programmes were well printed and on hand early every morning--a most important point, not always heretofore attained. A complete telephone service between the section rooms and the central hall was a feature of special advantage, each section reporting to headquarters every paper as it was taken up. This was then posted on a bulletin, so that any one could know at any time what was going on in each section. A great amount of delay and disappointment, that has often been felt by members anxious to hear certain papers in different sections, was thus entirely obviated. Columbus has set an example in this feature that must be followed in the arrangements for all future meetings. The entire service on these telephones was rendered not by professional operators, but by young lady students of the university, and it was well and gracefully done. It is fitting also that recognition should be given to some who have been less prominent in the local arrangements, but have had a large share in their preparation. While the public resolutions of thanks have made well-deserved mention of the local committee and its officers, especially Prof. B. F. Thomas, the indefatigable secretary, it is known in Columbus that much of the planning and arranging was the work of Prof. Edward Orton, Jr., the son of the president of the meeting, and that very much is owing to his laborious activity in the perfection of the local adjustments.