Two glass citrometers by Ronchetti.Weight probably lead

Made:
1820-1880
maker:
Ronchetti family
Two glass citrometers by Ronchetti

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Two glass citrometers by Ronchetti
Science Museum Group
© The Board of Trustees of the Science Museum

Two glass citrometers by Ronchetti.Weight probably lead, mercury weight, serial number 66. Paper scales. In mahogany box, also containing ivory slide-rule for temperature correction. No. 1 equals range 0 - 32 and No. 2 range equals 32 - 64.

Details

Category:
Experimental Chemistry
Object Number:
2005-444
Materials:
ivory, mahogany (wood), mercury and lead (metal)
type:
citrometers, hydrometer
credit:
Laboratory of the Government Chemist