THE PRINCIPLES OF MINING. Arranged by E. T. Howard, M.A., F.G.S , and E. W. Small, M.A., B.Sc., F.G.S. These Diagrams have been arranged in accordance with the list given in the Directory of Science and Art (1895). The object has been to supply a really useful selection at a very moderate cost. Twelve sheets, size 30 in. by 40 in. Price 21s. net; on rollers and varnished, £2 2s. net.

TERRESTRIAL AND ASTRONOMICAL PHENOMENA AND OBJECTS. By R. A. Gregory, F.R.A.S., author of “Elementary Physiography,” “The Planet Earth,” &c. These diagrams have been prepared to illustrate Phenomena and Objects which cannot be experimentally demonstrated or easily observed. It is believed that they will not only be of value in Departmental Classes, but also in Elementary Schools where Physical Geography is taught. Twelve sheets, size 30 in. by 40 in. Price 21s. net; on rollers and varnished, £2 2s. net.

ILLUSTRATING A PRACTICAL METHOD OF TEACHING BOTANY. By Professor Henslow, F.L.S. Nine sheets coloured, 42 in. by 31 in., £2; on rollers and varnished, £3 3s.

SIXTEEN COLOURED DIAGRAMS. By Professor Unwin. 31 in. by 23 in., £2 2s.; on rollers and varnished, £3 14s.

Models and Vases prescribed by the Science and Art Department for the use at the above Art Examinations. These Models and Vases have been duly approved by the Authorities, and specially manufactured for Chapman & Hall, Limited.

This Catalogue contains Illustrations of 423 different Casts, a great number of which are made by Messrs. Chapman & Hall from original and copyright designs, and from exhibits in the South Kensington Museum. The selection and manufacture are under the personal supervision of the Art Master of one of the largest Art Schools of England.

NOTICE.—The above diagrams, models, &c., can be inspected in the Show Room of Messrs. Chapman and Hall’s premises, together with a vast assortment of mechanical and other models, vases, diagrams, and drawing examples. Catalogues post free.