Notes on Collecting and Preserving Natural History Objects. Edited by J. E. Taylor, F.L.S., F.G.S., Editor of “Science Gossip.” With Numerous Illustrations. Crown 8vo. 3s. 6d.

RICHARD A. PROCTOR, B.A., F.R.A.S.

Half-Hours with the Stars. Nineteenth Thousand. Demy 4to. 3s. 6d.

Half-Hours with the Telescope. Illustrated. Fcap. 8vo. 2s. 6d.

Other Suns than Ours. A Series of Essays on Suns, Old, Young, and Dead, Science Gleanings, &c. Second Edition. Crown 8vo. 6s.

The Southern Skies. A Plain and Easy Guide to the Constellations of the Southern Hemisphere, &c. True for every year. 4to, with 12 Maps. 5s.

MARIAN S. RIDLEY.

A Pocket Guide to British Ferns. Fcap. 8vo. 2s. 6d.

R. RIMMER, F.L.S.