630

The preparation of oils.

TO REMOVE THE SMELL OF OIL.

Take the rank oil and put ten pints into a jar and make a mark on the jar at the height of the oil; then add to it a pint of vinegar and make it boil till the oil has sunk to the level of the mark and thus you will be certain that the oil is returned to its original quantity and the vinegar will have gone off in vapour, carrying with it the evil smell; and I believe you may do the same with nut oil or any other oil that smells badly.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

VII * X
Notebooks of Leonoardo da Vinci
VIII: Botany for Painters and Elements of Landscape Painting.
. . .
Of depicting natural phenomena.
610,
611
Of chalk and paper.
612,
613,
614,
615,
616,
617
On the preparation and use of colours.
618,
619,
620,
621,
622,
623,
624,
625,
626,
627
Of preparing the panel.
628
The preparation of oils.
629,
630,
631,
632,
633,
634
On varnishes [or powders].
635,
636,
637
On chemical materials.
638,
639,
640,
641,
642,
643,
644,
645,
646,
647,
648,
649,
650
. . .