112pp. Blue cloth-covered boards with gilt lettering on spine. 8vo. Spine ends rubbed and rounded at heel, frayed at head. Corners of boards rounded and slightly frayed. Text block edges lightly tanned. Endpapers moderately tanned, school library label on front pastedown. Internally some age tanning otherwise neat, clean, bright and tight. A reference book for the setting up of lecture experiments in optics. Numerous diagrams and illustrations throughout the book.
