Historical information

This item, which dates to 1988, is contained in the original supply packet and survives in good condition. It was commonly used by lightkeepers for both wet and dry bulb
thermometers, with the muslin going into the bottom of the dry bulb where it was held in place by the wick and ‘end of the wick was then placed in a jar of deep water to keep the bulb cool’. The difference in temperatures between the dry and wet bulb thermometers could then be worked out to establish the dew point in the air.They were common in lightstations, but this intact item remains in the original packaging and is a fine representative example of its kind. It was acquired from the Bureau of Meteorology. Recording and communicating weather readings was an important facet of lightstation work and a number of different but related items of meteorological equipment survive at the six lightstations managed by parks Victoria. The Cape Nelson collection includes a pair of Australian-made thermometers in their original box, both in Fahrenheit, with one recording the minimum, the other the maximum temperature and a barometer table with instructions for correcting readings. Cape Otway has a Beaufort Scale, a table of wind forces which lists 12 types on a scale of 1 to 12, and provides associated speed in knots and travel time per minute or hour. Gabo Island has an anemometer, wind speed indicator and a wind speed recorder.

Physical description

Muslin and wick for a wet bulb thermomenter in unopened white paper packaging with directions for use printed on the package on the front.

Inscriptions & markings

On front of package,"MUSLIN AND WICK FOR WET BULB THERMOMETER......."