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A catalogue (part first) of duplicates of ores, petrifactions, spars, gems, Crystals, and other Articles of Natural History, selected from the extensive and valuable collection of the late Right Honourable John Earl of Bute, which will be sold by auction, By Mr. King, At His Great Room, King-Street, Covent-Garden, On Monday, March 4, 1793, And Five following Days, At Twelve O'Clock. The whole to be Viewed on Thursday, February 28, and two following Days. Catalogues may be had at the Rooms. - Price 6d.

Cocaine crystals

Urea crystals

Kidney stone crystals

Tartaric acid crystals

Benzimidazole crystals

Employment for the microscope. In two parts. I. An examination of salts and saline substances, their amazing Configurations and Crystals, as formed under the eye of the observer: with Plain Directions how to prepare such Substances, and preserve them in constant Readiness for Inspection; whereby the Curious may always be furnished with numberless Objects hitherto little known. Also Occasional Considerations on Gems, Poisons, the Vegetation of Metals, the Resuscitation of Plants, the Formation of Amber, Corals, and many other Subjects. II. An account of various animalcules never before described, and of many other Microscopical Discoveries: With Observations and Remarks. Likewise A Description of the Microscope used in these Experiments, and of a new Micrometer serving to shew the Size of magnified Objects. Together with Instructions for printing off any Medal or Coin. Illustrated with Seventeen Copper Plates. By Henry Baker, Fellow of the Royal Society, and Member of the Society of Antiquaries of London.

Cocaine crystals

Urea crystals

Kidney stone crystals

Tartaric acid crystals

Benzimidazole crystals

Benzimidazole crystals

Kidney Stone crystals

Hippuric acid crystals

Salbutamol crystals

Salbutamol crystals

Urea crystals

Urea crystals

Urea crystals

Paracetamol crystals

Dried buffer crystals, LM

Dried buffer crystals, LM

Salicin crystals

Vanillin crystals, LM

Triamcinolone crystals

Wine crystals

Wine crystals

Urea crystals

Wine crystals

Works search

Cocaine crystals

Urea crystals

Kidney stone crystals

Tartaric acid crystals

Benzimidazole crystals

Benzimidazole crystals

Kidney Stone crystals

Hippuric acid crystals

Salbutamol crystals

Salbutamol crystals

Urea crystals

Urea crystals

Urea crystals

Paracetamol crystals

Dried buffer crystals, LM

Dried buffer crystals, LM

Salicin crystals

Vanillin crystals, LM

Triamcinolone crystals

Wine crystals

Wine crystals

Urea crystals

Wine crystals