As soon as this addition to the buildings shall be completed, and not before, there will be room in the house for the accommodation of a certain number of young men, from eighteen to twenty in number, of different mechanical professions, who, at the recommendation of proprietors, will be taken into the house to be instructed; who will be boarded and lodged in the house and be employed in the workshops, and for whose improvement in drawing, practical geometry, and mathematics an evening school, under the direction of the Clerk of the Works (Mr. Webster), who was formerly a teacher in such a school, will be established in the house in a room adjoining the workshops. As most of the young men who will be admitted to this seminary will probably come from distant parts of the country, and will return home after a residence of three or four months at the Institution, carrying with them a perfect knowledge of such new and useful inventions applicable to the common purposes of life as may be deserving of being generally known and adopted, it is easy to foresee that this arrangement will be of great and extensive public utility. It is, perhaps, that part of the establishment precisely which will be the most interesting, and which will contribute the most powerfully to the attainment of the principal object of the Institution--_the diffusing the knowledge and facilitating the general introduction of useful mechanical inventions and improvements_. The proprietors, he says, were 325; life subscribers, 268; and annual subscribers, 527. He concludes thus: We may safely look forward with confidence to a period not far distant when the Royal Institution of Great Britain, complete in all its details, and in full activity, will become so interesting that every person of liberality and discernment who takes pleasure in contemplating the process of human improvement, will be desirous of belonging to it and willing to assist in promoting its permanent prosperity. In June Davy was made Lecturer, instead of Assistant Lecturer, in Chemistry, and in a few days Dr. Garnett resigned. A permanent committee, consisting of Charles Hatchett, chairman, Lord Dundas, Mr. Howard, Mr. Chenevix, Mr. Pepys, Dr. G. Pearson, Mr. Nicholson, and Mr. Carlisle, was appointed for the purposes of chemical investigation and analysis; to make such experiments in the laboratory of the Institution as they think useful; Messrs. Hatchett, Howard, and Nicholson were requested to draw up a few short rules for the ordinary meetings and manner of conducting the business of the committee; and once a month or once a fortnight the committee was to be allowed to dine together at the house of the Institution.