To shew the cognation that even gross and empyreumatical oiles may have with pure {spirit of wine} I[altered from 'm'] made the following experiment['s' at end of word deleted] Haveing caus'd some Guajacum to be distill'd per se in a Retort (the common way) we tooke the oil after it had been purified by Rectification, and put to it in a phial a convenient quantity of highly rectified {spirit of wine}, and then haveing well shaken these liquors together they seem'd to be thoroughly mix'd after a differing manner from that of {spirit of wine} and oil of Turpentine or oil of Amber &c when these are shaken together, and thô we kept this very black and dark mixture for several days in a quiet place, yet we perceived not that the liquors did separate from one an other, as it is wont to happen in an hower or two or less when {spirit of wine} is confounded with oil of Turpentine or Petrolium &c.

A pendulum to vibrate second minutes ought according to the standard of the Royal Society to be 39 inches + 3/4 to be reccond from the point of suspension or center of motion