RARE ITALIAN GEOMETRY & SURVEYING COMPASS TREATISE
Title: Il goniometro, ossia compasso graduato per ...
Publisher: Mantua: Fratelli Negretti
Publication Date: 1844
Binding: Soft cover
Book Condition: Very Good
46,  printed pages. Folding table at the end (faded historic damp-stain). Faded historic damp stain on lower half and page toning throughout. Small ink ownership stamp on front free endpaper. 15 x 23 cm. Incomplete printed grey original wrappers retained on vintage embossed cream card wrappers. This short, nineteenth-century mathematical instrument work describes two slightly different hinged compasses for measuring angles that were intended for use in elementary survey work and geometrical drawing. Although in form they appear to be sectors, they do not contain any of the standard sector scales. The few markings they do contain do not originate from the center of the hinge, and hence they cannot be so used. After a brief introduction describing the instruments, the author illustrates their use with fifty-six figures, all printed on one large sheet bound at the end of the work. THE ERWIN TOMASH LIBRARY ON THE HISTORY OF COMPUTING A65. Not in Rcdi BMI. WorldCat locates just two examples in Columbia University N.Y. and Adler Planetarium, Chicago. Bookseller Inventory # 4487