2. The degrees of the velocity of the Motion of the Water every quarter of an hour for some whole Tides together; to be observed by a second Pendul-watch: and a logg fastened to a line of some 50 fathoms, wound about a wheel.
3. The exact measures of the Heights of every utmost High-water and Low-water, from one Spring-tide to another, for some Months or rather Years.
4. The exact Heights of Spring-tides and Spring-Ebbs for some Years together.
5. The Position of the Wind at every observation of the Tides; and the times of its Changes; and the degrees of its Strength.
6. The State of the Weather, as to Rain, Hail, Mist, Haziness, &c, and the times of its Changes.
7. At the times of observation of the Tides, the height of the Thermometer; the height of the Baroscope; the height of the Hygroscope; the Age of the Moon, and her Azimuths; and her place in all respects; And lastly the Sun's place; all these to minutes.
And it would be convenient, to keep Journal Tables, for all these Observations, each answering to its day of the Month.
For the Apparatus of all these observations, there will be particularly necessary.
A good Pendulum-watch.
A Vane shewing Azimuths to minute parts.