A most important addition to the scientific works has also been made in the books belonging to the Brighton and Sussex Natural History Society, which are available to the public in the reading rooms, and which are largely used and highly appreciated. The library has been of great service to many preparing for examinations, and to those engaged in literary work. In one instance, amongst many, a foreign man of letters was enabled to remain in Brighton all the winter, instead of going to London, from finding here the books which he daily required. The expression of thankfulness for the great boon of a free library, con taining so large a number of valuable works, has been universal from residents and visitors. [Then follows the list of donors to the library since the removal into the new building.] MUSEUM SUB-COMMITTEE. The Museum Sub-Committee beg to report that before the opening of the Museum the various departments had been so carefully arranged and classified, as far as the extent of the collections went, that besides bringing the labelling nearer to completion, their at tention has been principally given to filling up gaps and supplying deficiencies. The chief of these has always been felt to be the mammalia, of which there were very few at the beginning of the year. It is satisfactory to be able to report that this defect is in course of being remedied. A number of very fine specimens have been presented, chiefly by Sir J. Cordy Burrows, including several species of monkeys of the old and new worlds, and other animals. An arrangement has also been made with Mr Brazenor, by which further additions have been made in exchange for duplicates. Several skins hitherto hung on the walls have also been skillfully stuffed, and in this way excellent specimens of the antelope, lynx, and great anteater have been added to the collection. In all, the additions to this department will, when those now in hand are completed, amount to about fifty, and others are pro mised. Already the cases are so much crowded that it is impossible to attempt any classifi cation. Every effort will be made to render this instructive and popular department worthy of the institution, and as we are already cramped for want of space, the earnest attention of the Town Council is re quested to the means of providing additional accommodation. 