DURING next August, Toronto is to be the scene of two great scientific gatherings. The British Association will hold its ninety-second annual meeting on August 6-13, and an International Mathematical Congress will be held on August 11-16. International gatherings of mathematicians have previously been held in Zurich (1897), Paris (1900), Heidelberg (1904), Rome (1908), Cambridge (1912), and in Strasbourg (1920). The North American continent is for the first time the meeting place of such an assembly. The natural boundary of distance, with the incident expense of transportation, is being in a large measure overcome by the generosity of the Governments of the Dominion of Canada and the Province of Ontario, each of which is making a contribution of 25,000 dollars to defray the expenses of the Congress. The greater part of these funds will be used to assist the passage of eminent European men of science, mathematicians, and representatives of those sciences and professions which apply mathematics. It is estimated that the attendance from Europe will exceed one hundred and fifty. The British representation on the applied side promises to be large. At least twenty will come from France, nearly as many from the Scandinavian countries, and more than a dozen from Italy. Not less than fifteen European countries will be represented. The attend-ance from Canada and the United States is expected to run into the hundreds.