^0^9) Numb.53. 
PHILOSOPHICAL 
TRANSACTIONS, 
November 15. id(Jp. 
The Contents. 
A Description of Dr. Chriftopher Wren's Bngm ^ defignei for ^ 
Grinding Hyperbolical Glajfes. Somi inqtnries concerning the 
Sah'fpnngs at l^mtmcby anjw - An Extract a f Let- 
ter y concerning the Death of the Btgg eaped Woman ^ dif- 
courfed of in Ni^mh, 52, Jn accomp^ of fome Books: I. 
€E RT AIN P H I L Q SO P B IC A L ESSATES, 
and other TRACTS by the Honor Me ROBERT 
BOTLE: The Second edition ^ enlarged, London • /r/V 
ted for H, Herringmaninthe New- Exchange A, i66(^AJ. 
DEL MOFIME NTO DELLACOMETA^ ap^ 
parfa A.i66^: Da P lETRO MARIA MliT 0 L 
i^Pifa, in/^;. III. ERAS MI B ART HO LI N I de 
CO METIS A. 166^, A, 166$. Opufcuhm. Hafnia^ 
in'^\ IV. SYLF A & POMONA^ reprinted with • 
BnUrgemms^ by I, EU ELTN, Efqtiire &c. 
A Defcription 
of Dr. Chriftopher Wi^tis Engin, defigned for grinding Hj- 
perbolicd Glajjes 5 as it was in a manner promifed Numb* 
We lliall give it in the Author's owne words, asfolloweth. 
SInttria Corpora terendo idonea , P.^R-^ quorum P. 
fint aqualia <^olumnm forma ^ R vero Corpus Lenti- for- 
me. P, rote fur circa axin ABt, circa C d^^ & Ry circs E G, 
\ H ffff Sim 
