It has been determined to devote the money raised for a memorial to the late Duke of Cambridge, to the foundation of a charitable institution. Two plans have been proposed, between which the choice will probably be made. One is to build a set of almshouses for the widows of non-commissioned officers. The projector supposes that if the building can be erected, the institution may be maintained by contributions from the army. The other plan is to establish a sanitary institution, open to the poor of every class. The merits of the "good duke," as far as they have been made apparent, appear to be comprised in the fact of his having been the least disreputable of all the sons of George III.; in having eaten more charitable dinners than any man upon record; in having spent the £17,000 a year, given him by the nation, to the last penny; and having left behind him two children to be supported by public bounty. Punch thinks that the £12,000 a year given to his son, the present Duke of Cambridge, is quite sufficient to prevent the English nation from forgetting the father. There are in London 491 charitable institutions, exclusive of local and parochial trusts, many of them having branches and auxiliaries. Of these 97 are medical and surgical charities; 103 institutions for the aged; 31 asylums for orphans and destitute children; 40 school, book, and visitation societies; 35 Bible and missionary societies. These associations disburse annually about £1,765,000, of which £1,000,000 is raised by voluntary contributions; and the remainder arises from funded property and the sale of publications. A society has recently been formed at Windsor, under the patronage of the Queen, Prince Albert, and the Duchess of Kent, for improving the condition of the laborers in several adjacent parishes. At a recent meeting 21 persons were selected, on account of superior neatness, industry, and general good character, who received a reward of from 15 to 30 shillings, together with a framed certificate signed by Prince Albert.