Hygrometer

International names:

Hygrometer

Danish Instrument Inventory text:

Hygrometer. Brass. Saussure. For 2 hairs (missing). Thermometer -15 to 80; at 0 is engraved: GL, at 80 is engraved: EB. The filament is protected by a brass case 280x30x20 with a grid. Index with spiral spring; scale Rad50 0 to 100 (Sec - Humide). Base by 4 folding brass feet L50. Shaped oak box 390x125x40.Signed: Richer / Rue Louis de Marais / No 585 / an 9 / No 141801

• Category: Air
• Hauch number: G122
• Inventory number: 6640
• Danish Instrument Inventory number: 1704

• Hauch references:
• Begynd.grund: §353
• Cabinet 1: 0

• Literature:

• Essai sur l´hygrometrie, 4 , Neufchâtel 1783)
  

  Middleton(1969) p.108