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.
- Experimental Chemistry
- Object Number:
- citrometers, hydrometer
- Laboratory of the Government Chemist
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