Silver catadioptric pocket microscope invented and made by John Clark, Edinburgh, 1751

One of a group of orders, medals and badges awarded to Sir Alexander Fleming, discoverer of penicillin, Brazilian Academy of Medicine member's badge and chain, inscribed 'Fundada em 8 De Maio De 1835'

One of a group of orders, medals and badges awarded to Sir Alexander Fleming, discoverer of penicillin, Legion of Honour, 3rd Class (Commander), 4th Republic

Nicol prism, analysing prism made of two pieces of Iceland spar (trigonal crystal calcite) cemented together with Canada balsam, the prism makes use of the double refracting qualities of Iceland spar to form an optical filter for polarising light, by William Nicol, Edinburgh, Scotland, circa 1850

Sample of liquefied carbonic acid gas, made by Kenneth T. Kemp of Edinburgh, 1830

One of a group of specimens illustrating the dressing and smelting of ores, German method - smelting of lead ore and separation of silver - silver separation, cupel hearth - sample of silver

One of a group of samples of rare and other metals in a pure state - sodium

One of a group of samples of rare and other metals in a pure state - lithium

One of a group of samples of rare and other metals in a pure state - strontium, two samples

One of a group of samples of rare and other metals in a pure state - calcium, two samples

One of a group of samples of rare and other metals in a pure state - magnesium, two samples

One of a group of samples of rare and other metals in a pure state - aluminium

One of a group of samples of rare and other metals in a pure state - zinc

One of a group of samples of rare and other metals in a pure state - cadmium

One of a group of samples of rare and other metals in a pure state - antimony

One of a group of samples of rare and other metals in a pure state - tellurium