The Preparation and Mounting of Microscopic Objects. New Edition, greatly enlarged and brought up to the Present Time by John Matthews, M.D., F.R.M.S., Vice-President of the Quekett Microscopical Club. Fcap. 8vo. 2s. 6d.

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Practical Microscopy. Illustrated with 257 Woodcuts and a Coloured Frontispiece. Demy 8vo. 7s. 6d.

COL. HEBER DRURY, late Madras Staff Corps.

The Useful Plants of India, with Notices of their chief value in Commerce, Medicine, and the Arts. Second Edition. Royal 8vo. 16s.


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SIR JOHN F. W. HERSCHEL, Bart., K.H., &c., Member of the Institute of France, &c.

Popular Lectures on Scientific Subjects. Crown 8vo. 6s.