We acknowledge Australia’s First Nations Peoples as the Traditional Owners and Custodians of the land and give respect to Elders – past and present – and through them to all Aboriginal and Torres Strait Islander peoples.

Negretti and Zambra hygrograph

The machine consists of a glass and metal box that encases a cylinder around which a paper chart is wrapped. A pen on an arm sits against the chart. A small 'chimney' is mounted on one side of the box.
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