Of OXFO%<D~SHI%E~ iiy 



ftated a Theory of that Planet ; and of the Moons Libration, He 

 has attempted alfo (and perhaps by this time performed) a Sele* 

 nograpby by meafure, what we have yet of that kind being rather 

 pictures.) than accurate furveys or maps of the Moon : To this pur- 

 pofe he contrived a Lunar globe, reprefenting not only the Moun~ 

 tains and Vallepsm folid work, but the feveral degrees ofwhitenefs 

 and blackpefi on the furface, which if turned to the light, (hews 

 all the menjirual pbafes of the Moon, with the feveral appearances 

 that arife from the fhadows of the Hills and Vales. 



28. He has made Maps of the Pleiades, and other Telefcopial 

 flats, and propofed ways to folve the great Queftion concerning 

 the earths reft or motion by fomefmally^m about the North pole 

 to be feen only in large and well made Telescopes : To which In - 

 Jlrument he has added many forts of Rete's, /crews, and Apertures, 



to take in more or lefs light, by opening and (hutting like the pu- 

 pil of the eye, according as the Obferver thinks fit ; and has im- 

 proved the manufacture of grinding good glajfes. He has alfo 

 made two Telefcopes to open with a joynt after the manner of a 

 feclor, whereby dijiances may be taken to half minutes, and no 

 differences found in the fame objervation often repeated, the In- 

 firument not being lyable to any prejudice by warping or luxation. 

 He has contrived and hung Quadrants, Sextants, and Radii, much 

 better than heretofore, by which Agronomical Obfervations may be 

 made more accurate and eafie. Of all which ingenious and ufe- 

 ful Inventions, there are much more full and elegant relations, in 

 the moft accurate Hiflory of the Royal Society" : However, they 

 being moft, if not all of them found out here, or at leaft whil'ft 

 their Author was AJlronomy Profejfor in this Vniverfity, I could not 

 but mention them with relation to this place, as I fhallfome other, 

 matters which ow their invention to the Nameworthy per/on. 



29. And thefe are all the modern advancements in Agronomical 

 matters I can at prefent think of, onely a late invention of one 

 R. Holland, a teacher of Mathematicks'm this City for many years, 

 who has lliewed us a way to get the Angle of Parallax of a Comet 

 or other Phenomenon at two objervatious to be taken in any one 

 ftation or place of the earth, and thereby the diftance from the 

 earth : whereof no more, there being a ftiort account of the 

 whole contrivance fet forth by himfelf, and printed at Oxford. 



Hiftory of the Royal Society, Tart. 2.fui> firtem. 



Ffa 30. Having 



