Volume I. of The International Scientific Series.

UMBRA OXONIENSIS.

Results of the expostulation of the Right Honourable W. E. Gladstone, in their Relation to the Unity of Roman Catholicism. Large fcap. 8vo. Cloth, price 5_s._

VAMBERY (Prof. A.).

Bokhara: Its History and Conquest. Second Edition. Demy 8vo. Cloth, price 18_s._

VAN BENEDEN (Mons.).

Animal Parasites and Messmates. With 83 Illustrations. Second edition. Cloth, price 5_s._