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Eccentricity of the Sextant by Frederic Furbish, 1893

Eccentricity of the Sextant by Frederic Furbish, 1893, Page 57

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Now, when the desired number of observations have been made, remove the telescope from the sextant and place it in the case. Clamp the index arm in the proper position, lower the shade glasses, if they have been in use, and place the instrument in the case with the graduated arc up. Close and lock the case and return it to its place. Unscrew the funnel of the mercury bottle, invert it and screw the point into the neck of the bottle. This forms a sort of cup. Hold the basin in both hands, steadying it on the edge of the cup, and pour the mercury into it from the corner of the basin. If sufficient care is taken there is no necessity for spilling any. Unscrew the funnel, screw in the stopper and screw on the funnel
 
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