Science Lectures at South Kensington. Vol. II. (Macmillan.)- . Here
are some seventeen lectures, given at South Kensington to science teachers during the exhibition of the loan collection of ap- paratus. Those lectures explained the apparatus shown, and were illustrated by it. The subjects discussed belonged, in greater part, to the domain of physics, but there were two lectures devoted to the explanation of the iustrumonts and i d mothocls employed in physio- logical investigations. The book is in no way tedious or difficult to read, and yet it has the merit, so unusual as a characteristic of popular expositions, of being quite satisfactory from the scientific point of yiow. Wo commend especially the lecture, by the Warden of the Standards, on "Balances and Weighing lo that on the laws of fluid resistance, by the late W. Fronde ; and the two physiological dis- courses, by Drs. Burdon Sanderson and Lander Brunton ; these papers aro fully illustrated by drawings and diagrams. Much infor- mation, both interesting and instructive, may likewise be gathered from other lectures in the volume, such as those treating of "Musical Temperament " and "Lighthouse Illumination." It is some consola- tion to know that the loan collection of scientific apparatus, although dispersed, has loft behind a permanent and useful record of its exist- ence.
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