There is perhaps no objection to regarding the National Academy of Sciences as a _quasi_ hereditary upper house, whose functions are largely conservative, while the active duties on behalf of science devolve on a more democratic body--The American Association for the Advancement of Science. This association meets at Columbia University, New York City, during the last week of the present month, and with it some fifteen special societies devoted to different sciences. The association celebrated its fiftieth anniversary in Boston two years ago, when about half of its nearly two thousand members were present, and there is every reason to hope that the New York meeting will be as largely attended. The members will be welcomed by Governor Roosevelt and President Low, and after listening to addresses by the vice-presidents, will divide into nine sections, before which special papers will be presented. The address of the retiring president, Mr. G. K. Gilbert, of the United States Geological Survey, will be given at the American Museum of Natural History on Tuesday evening, while the president, Prof. R. S. Woodward, of Columbia University, will preside at the general sessions. The American Association has during its long history performed a useful service in bringing men of science together and in attracting the attention of the general public to scientific work, but in some respects it has been less influential than its sister associations in Great Britain, Germany and France. This has been in some measure due to the large area of the country and the heat of the summer, making it difficult for men of science to come together, but it probably represents chiefly a certain lack of organization of science in America. With the growth of university centers and of scientific work under the Government, the number of men of science has greatly increased, while with the establishment of special societies and journals their means of intercommunication have improved. There is every reason for the support of an association which can represent the whole body of scientific men and forward the scientific movements that are of such importance to the country. The membership of the association is of two classes, fellows and members. The former are selected from those who are actively engaged in advancing science, while all those who are interested in science are eligible for membership. Those who would like to have their names proposed for membership may address the local secretary of the New York meeting, Prof. J. McKeen Cattell, Columbia University, or the permanent secretary, Dr. L. O. Howard, Department of Agriculture, Washington, D. C. * * * * *