A Zeiss Butter Refractometer : Notes from the Oesper Collections, No. 42, January/February 2017

Posted on by
The circa 1920 Zeiss butter refractometer recently acquired by the Oesper Collections.

The circa 1920 Zeiss butter refractometer recently acquired by the Oesper Collections.

Issue 42 describes a new addition to the museum’s refractometer collection – a circa 1920 Zeiss butter refractometer – and its historical importance as a means for rapidly differentiating between pure butter and margarine.

Click here for all other issues of Notes from the Oesper Collections and to explore the Jensen-Thomas Apparatus Collection.

 

 

 

 

Related posts:

  1. Countercurrent Distribution Once Again : Notes from the Oesper Collections, No. 32, May/June 2015
  2. Epicurus and Atomism : Notes from the Oesper Collections, No. 38, May/June 2016
  3. The Steelyard Balance : Notes from the Oesper Collections, No. 39, July/August 2016
  4. Liebig and Combustion Analysis : Notes from the Oesper Collections, No. 40, September/October 2016