Endless Amusement / A Collection of Nearly 400 Entertaining Experiments in Various Branches of Science; Including Acoustics, Electricity, Magnetism, Arithmetic, Hydraulics, Mechanics, Chemistry, Hydrostatics, Optics; Wonders of the Air-Pump; All the Popular Tricks and Changes of the Cards, &c., &c. to Which is Added, a Complete System of Pyrotechny; Or, the Art of Making Fire-works.

by Unknown

In one neat volume.

"By the appearance of Dr. Bird's work, the student has now all that he can desire in one neat, concise, and well-digested volume. The elements of natural philosophy are explained in very simple language, and illustrated by numerous wood-cuts."—Medical Gazette.
"A volume of useful and beautiful instruction for the young."—Literary Gazette.
"We should like to know that Dr. Bird's book was associated with every boys' and girls' school throughout the kingdom."—Medical Gazette.
"This work marks an advance which has long been wanting in our system of instruction. Mr. Bird has succeeded in producing an elementary work of great merit."—Athenæum.

---

HERSCHELL'S ASTRONOMY.

A TREATISE ON ASTRONOMY,
BY SIR JOHN F. W. HERSCHELL, F. R. S., &c.
WITH NUMEROUS PLATES AND WOOD-CUTS.
A NEW EDITION, WITH A PREFACE AND A SERIES OF QUESTIONS,
BY S. C. WALKER.

In one volume, 12mo.

---

BREWSTER'S OPTICS.

ELEMENTS OF OPTICS,
BY SIR DAVID BREWSTER.
WITH NOTES AND ADDITIONS, BY A. D. BACHE, LL.D.
Superintendent of the Coast Survey, &c.

In one volume, 12mo., with numerous wood-cuts.