Geologists were expected to plot up their observations at night or on wet days. Max Gage took this photograph of equipment he used: notebook, protractor sheet on tracing paper, parallel ruler, slide rule for calculations, scale and 4H pencil. After a traverse was plotted and adjusted on tracing paper, it was pricked through on to the Whatman’s field sheet, and geological features were marked in coloured inks.
Using this item
Private collection, Maxwell Gage
Photograph by Maxwell Gage
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