Bailey’s Grammar School Physics. Practical lessons with simple experiments that may be performed in the ordinary schoolroom. 50 cents.

Ballard’s The World of Matter. Simple studies in chemistry and mineralogy; for use as a text-book or as a guide to the teacher in giving object lessons. $1.00.

Brown’s Good Health for Girls and Boys. Physiology and hygiene for intermediate grades. Illustrated. 45 cents.

Brown’s Health in the Home. Illustrated. 50 cents.

Clark’s Practical Methods in Microscopy. Gives in detail descriptions of methods that will lead the careful worker to successful results. Illus. $1.00

Clarke’s Astronomical Lantern. Intended to familiarize students with the constellations by comparing them with facsimiles on the lantern face. With seventeen slides, giving twenty-two constellations. $4.50.

Clarke’s How to Find the Stars. Accompanies the above and helps to an acquaintance with the constellations. Paper. 15 cents.

Colton’s Elementary Physiology and Hygiene. For grammar grades. 317 pages. Illustrated. 60 cents.

Eckstorm’s The Bird Book. The natural history of birds, with directions for observation and suggestions for study. 301 pages. Illustrated. 60 cents.

Guides for Science Teaching. Teachers’ aids for instruction in Natural History.