TESSERACT Early Science & Medicine Catalogue #111; Globes, Sundials, Heliostat

Description

An 18th century horary quadrant made in Leeds.  A significant pair of globes by America's first commercial globe maker.  A silver-mounted iron-bound terrella made in 1774.  A "Bienvenu a Paris" protractor.  The complex clockwork sun-tracking heliostat of Silbermann.  Coccius' double-arm ophthalmoscope.
These are a few of the dozens of antique scientific and medical instruments presented in our Tesseract catalogue, issue 111.
Also included are the only surviving example of Morgard's c. 1615 "Pantocosme," a signed Islamic sighting quadrant, the remarkable Scarlett / Culpeper reading glass, a superb example of the "Chronodeik," a wonderful triple-ring sundial by Bion, complex four-legged dividers, and the second known example of the early 18th century "Roger North form" of combined aide-memoire and architect's rule.
This recently-published catalogue normally sells for per copy.  But here it is DISCOUNTED to a buy-it-now price of .  And we pay its postage to anywhere in the world, at no charge to the buyer.
Dozens of other items are listed on our website: www.etesseract.com
We are full-time dealers in early scientific and medical instruments, publishing catalogues since 1982.  Our customers include important museums of the history of science, worldwide, as well as collectors and dealers.
Prices range from to ,500, and everything is fully illustrated, described, and priced.
Dozens of other items are listed on our website http://www.etesseract.com/
David & Yola Coffeen, Ph.D.'s
TESSERACT
Box 151
Hastings-on-Hudson, NY 10706
www.etesseract.com