Num. ipo« 
PHILOSOPHICAL 
. TRANSACTIONS. 
For the Month of NorEUBER. 1687. 
The C 0 N T E N T 5^. 
( I ) E SESTERTIO Differtatiuncula, flib 
finem Voluminis Quarti opufculorum Ce« 
leberrimi D. D. Ifaaci Barrow^ S.S. TheologU Profejforis 
nuper edita, Cum Tabula valorem Nummi Rommi in mo- 
neta Noftra Anglic exhibente. Quam ob eximium ejus 
ufum in legendis veteribus ex loco quodammodo impro* 
priohuc transferre vifum eft. 
( 2. ^ De Numero Radicum ia iEquationibus Solidis ac 
Biquadraticisj five tertiae ac quartae Poteftatis, earumq; 
limitibus, ex contemplatione interfeftionum Circuli & 
Parabolse dat^ in Conftrudionibus hujufmodi sequationum 
tradatulus. Authore £. Haliey, 
( 3. ) An Account of fome Obfervations lately made at 
Nurenhurgy by Mr. P. Wurtzel-hmr ; fliewing that the 
Latitude of that Place, has continued without lenfibie 
alteration for 200 Years laft paft ; as like wife the Obliqui- 
ty of the EcUpick \ by comparing them with what was 
oblerved by Bernard Walther^ in the Year 1487 : Being a 
Difcourfe read before the ROTAL SOCIETT, in 
one of their late Meetings. 
Bbb DE 
