Sliding scales of chemical equivalents, has 1.243 written in on upper half of left hand side and no publisher's name on the bottom. Wollaston slide rule of chemical equivalents, England, about 1814 1814
[Ms. notebook of William Hyde Wollaston, chiefly re his work on rhodium and its alloys, 1822-1825; with 9 slips re same inserted. See also below] 1822-1825
Rhodium tipped pen made by William Hyde Wollaston and given by him to his godson General Sir William Codrington in May 1822 (with 4 authenticating documents) Rhodium tipped pen made by William Hyde Wollaston 1820-1822
Slice of rhodium alloy prepared by W.H. Wollaston, c.1822-1825. Slice of rhodium alloy prepared by W.H. Wollaston, c.1822-1825 1822-1825
Sliding scales of chemical equivalents, has 1814 date clearly at the bottom and alumina inscribed on the upper part of the left hand scale. Wollaston slide rule of chemical equivalents, England, 1814 1814
Wollaston's cryophorus, by J. J. Griffin & Sons, London, England, 1894. Wollaston's Cryophorus, 1894 1894
Glass tube of rhodium - tin alloy prepared by the discoverer Dr. William Hyde Wollaston about 1825 Specimen of Rhodium Alloy in roughly triangular pieces 1822-1825
portable drawing outfit containing Wollaston type camera lucida, with folding box foot case stand, by Ebsworth, Fleet Street, London, England, 1801-1820 Portable drawing outfit of Wollaston type camera Lucida with folding box foot case stand 1801-1820