48. Amongfi: the ^^/^r-iror^5-of Pleafure, we muft not forge C 
an Engine contrived by the Right Reverend Father in God, /obit 
Wilkins^ late Lord Bifliop of Chejler^ when he was Warden of 
Wadham College^ though long fincc taken thence ; whereby, of but 
few gallons of vpater forced through a narrow Fijfure^ he could 
raife a mift in his Garden^ wherein a perfon placed at a due di- 
ftance between the Sun and the mijl^ might fee an exquifite /?^7i«- 
^OB' in ail its proper co/oz/ry : which diilance I conceive was the 
fame with that affigned by Des Cartes^ inz, where the Eye of the 
Beholder is placed in an angle of 4Z degrees, made by the decufa- 
tion of the line of Vifion^ and the rays of the Sun ; and the Fijfure 
fuch another as in his Diagram '\ But what kind of In§lrument it 
was that forced the v^ater^ I dare not venture to relate, the defcri- 
ption given me of it being but lame and iniperfeti:. 
49. Nor can Ipafs by unmentioned, 2 Clock, that I met with 
at Hanwell^ at the Houfe of the Right wordiipful Sir Anthony 
Cope^ that moves by water^ and (hews the hours^ by the rife of a 
new guilded i'/zw for every hour^ moving in ^{'mdW Hemisphere of 
wood, each carrying in their Centers the number of fome hour 
depided black, ; as fuppofe of one a clock, which afcending half 
way to the Zenith of the arch^ (hews it a quarter paft one^ at the 
7eriithh7A{ hour \ whence defcending again half way towards 
the Horizon^ three quarters paft o/z^ ; and at laft abfconding under 
it, there prefently arifes another guilded Sun above i\\t Horizon ?lI 
the other fide of the arch^ carrying in reenter the figure tryo i 
and fo of the reft. Which ingenious device, though taken out 
of Bettinu6 \ who calls it, aquarii Automata ingeniofiljmi horari- 
am operationem : yet being fince improved by that ingenious Perfon.^ 
and applyed to other ufes, particularly of a Pfeudo-ptrpetual mo- 
tion made by the defcent of feveral guilt bullets upon an indented 
declivity, fuccefTively delivered by a wheel much of the fame fa- 
brick with the Tympmum of the Water-clock-, fo that they feem ftill 
the fame : I could not but in juftice take notice of it. 
50. There are fome other Water-works at the fame Sir Anthony 
Copes^ in a Houfe of diverfion hu'ik in z fmall I/land m one of the 
Fifi-ponds, Eaftward of his houfe, where a ball is toft by a column 
of water^ and artificial ^owm defcend at pleafure ; within which 
they can yet fo place a candle^i\\2it though one would think it muft 
* T)es Cartes Meteoror.cap.%. • Marii Bett'mi ^rariiThilofoph.Mathemat.tom-z.Exodio^. <^ult. 
G g 2 needs 
