Reproduction of a Marsh apparatus
The 26th issue of Museum Notes deals with the historic Marsh test for arsenic and its role in both the history of forensic chemistry and detective fiction.
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Examples of surviving half-liter Grenet cells (Jensen-Thomas Apparatus Collection). The cell on the right has its Zn anode raised.
The 25th issue of Museum Notes is the last installment of our series on historic voltaic cells and highlights the famous dichromate cell of Poggendorff and Warington.
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The Leclanché cell as depicted in Benjamin’s 1893 treatise on the voltaic cell.
The 24th issue of Museum Notes highlights the Leclanché voltaic cell in both its original wet-cell form and modern dry-cell form. This cell is the basis of most of our current everyday batteries from the D-cells used in traditional flashlights to the smaller AAA-cells used in many of our everyday electronic devices.
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An actual surviving example of the Grove cell and a spare ceramic spacer.
The 23rd issue of Notes from The Oesper Collections highlights the famous Grove nitric acid cell and its later modification by Robert Bunsen which made it into a standard commercial and laboratory source of electrical energy for more than 50 years.
Click here for all other issues of Notes from The Oesper Collections and to explore the Jensen-Thomas Apparatus Collection.