London: Orr, 1838.
5 plates formed of pasted-on colored paper triangles, and 5 diagrams within the text. 94 pages. Slim 8vo, bound in 3/4 burgundy calf, ornately gilt spine (chipped at the top), marbled boards, all edges red. London: W.S. Orr, 1838. Fourth Edition. Scarce. Very good(+).
Condition: Very Good(+)