“ My Wheel-barometer I could never fill so exactly with Mercury, as to exclude all Airs and therefore I trust more The Exclusion of all Air is here necessary, because Air being subject to the operation of Heat and Cold, if any of it remain in the Barometer, it will cause it to vary from shewing the true Pressure of the Air. ”

“ And now my wonder is, to see, how slow it is, it holding most between the nine and twentieth and thirtieth inch of late.
17. I must now (January 13. 1665/6) tell you, that the Mercury stands at this time (as it did also yesterday) a quarter above 3O. inches; yet both days very dark and cloudy, sometimes very thick and misty Air; which seldom falls out. For, for the most part, I see it higher in clearest setled weather, than in such cloudy and misty Foggs. This thick Air and darkness hath lasted above a week; lately more Cold, and East and North-East wind. ”

“ Whereas commonly it hath hitherto been believed, that the poyson of Vipers being swallowed, was present death; this Author, after many reiterated Experiments, is said to have observed, that in Vipers there is neither Humour, nor Excrement, nor any part, not the Gall it self; that, being taken into the Body, kills. And he assures, that he hath seen men eat, and hath often made Bruit Animals swallow all that is esteem'd most poysonous in a Viper, yet without the least mischief to them. ”

“ For by this means, after the distance of the Moon hath been exactly found, the distance of the Sun will easily be deduced.
As for the time, fittest for making Observations of the Moon, that will be, when she is about a Quarter or somewhat less illuminated, because then her light is not so bright, but that with a good Telescope she may be observ'd to pass close by, and sometimes over several Fixt stars ”

“ Figure 2 The other Instrument, for Fetching up water from the depth of the sea, is (as appears by Figure 2.) a square woodden Bucket C, whose bottoms EE, are so contrived, that as the weight A, sinks the Iron B, (to which the Bucket C, is fastned by two handles DD, on the ends of which are the moveable bottoms or Valves EE,) and thereby draws down the Bucket; the resistance of the water keeps up the Bucket in the posture C; whereby the water hath, all the while it is descending, a clear passage through ”

“ An Apendix to the Directions for Seaman, bound for far voyages.⁠Of the judgment of some of the English Astronomers, touching the difference between two learned men, about an Observation made of the first of the two late Comets.⁠ Of a Correspondency, to be procured, for the finding out of the True distance of the Sun and Moon from the Earth.⁠Of an Observation not long since made in England of Saturn.⁠An Account of some Mercurial Observations, made with a Barometer, and their Results.⁠Some Observations of Vipers, made by an Italian Philosopher. ”

“ By the advantage of which Vessel; it may be known, whether sea water be Salter at and towards the bottom, then at or near the top: Likewise, whether in some places of the sea, any sweet water is to be found at the bottom ”