The Library of the Royal Institution is open for the use of the Members and Subscribers every day on which the House of the Institution is open; in Winter from Ten till Four, and from Seven till Ten in the Evening; and in Summer from Ten till Five, and from Seven till Ten in the Evening. * * * * * Mr. BRANDE and Mr. FARADAY will commence the Spring Course of their Chemical Lectures and Demonstrations, in the Laboratory of the Royal Institution, on Tuesday, the 12th of February, at Nine in the morning precisely. A Prospectus may be obtained at the Institution, or of the respective Lecturers. * * * * * _In the Press, and nearly ready for publication_, A COLLECTION OF CHEMICAL TABLES, for the use of Practical Chemists and Students, in Illustration of the Theory of Definite Proportionals; in which are shewn the Equivalent Numbers of the Elementary Substances, with the Weights and Volumes in which they combine; together with the Composition of their most important Compounds, and the Authorities for their Analysis. By WILLIAM THOMAS BRANDE. THE QUARTERLY JOURNAL OF SCIENCE, LITERATURE, AND ART. OCT.–DEC. 1827. _On the Means generally used with the Intention of curing a Stoop_.[37] When the chest and the head fall forward, the most common method of trying to correct the stoop is to put on some instrument by which the shoulders and the head are held back. To operate upon the shoulders, the common back-collar is applied, and to hold back the head, a riband is brought over the forehead and fastened to the collar.