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AN APPENDIX. A Brief Explication of the Pyramidical Dyal set up in His Majesties Private Garden at White-Hall, July 24. 1669.
THE Dyal being placed upon a Pillar by His Majesties Order in the Privy Garden, it was intimated unto me by divers Worthy Persons as a thing very expedient, that an Explication should be published, of the Use of the several Dyals there contained: For although to divers of them were added a Verse or two, explicating how the Hour, &c. was to be found by them; yet in regard many of them were new, and not to be found in any Author; and others belonging to Astronomy, Cosmography, &c. not so easily conceived by all, they judged very expedient a Declaration thereof should be set forth, whereby such as came dayly to see it, might receive more satisfaction.
Hereupon, having soon after the setting up of the Dyal, left Lon∣don, and being arrived at my Lodging in the Country, I began the said Explication; and being much desirous to add some further Orna∣ment to the Dyal already placed, I began the making of four Water-Dyals, to the placed at the four Corners of the Pyramidical Dyal in a competent distance from the same.
To this Underatking I was moved, as well by the opportunity of a Fountain in the Privy Garden so near the Dyal; as also, for that Ex∣perience