C SOfi ) N/ifd. 87 
PHILOSOPHICAL 
TRANSACTIONS. 
For the moceths of September and oUober. 
oUob. 14. 1672^ 
The CONTENTS. 
An ExtraB of an EpiJileofBr Langdot^ reprefenttng^Of what 
great u[eW\gt&ion^ Fermentation^ Triturear Grinding, if 
they were weM regarded, might be in Chymijlry | and proving it by 
very conpderable Experiments Jaid to have been mt$de by himfelf. 
An UxtraU of a Letter of Mr. \j&tT%^ enlarging hu former 
Notes about Kermess ^nd withalinfinuating his conjeBure of Cc^ 
chmtiYi being a fort cifK^trnQs. A Letter written from Florence 
by Mr. Tho. ^Wit^contaimngdivers remarkable Experiment 
there made tiponVipQTS^ fmce Ch2itz%% feeo^d Reply to Sig^ 
Franc. KQduDoUor \\fz\\W%An[vper to the Book, entitaled Lux 
Mathematical &e«. The fame DoBors Additions to what he 
lately publifh' tin his Wor^s De Motu & Mechanice, concerning 
the Center of Gravity of an Hyperbola. An Accompt offome 
hooks: I. TraBatusdeVlTA ]SlATV\M:&c.Auth ♦Franc* 
Gliflbnioj Med. D. ^ ^c, II. Jeremi^HorroGcii Opera 
Tofihuma^ una cum Crabtr^i Obfervat. Uhfiihm, nec non Job, 
Flamftedii de Jemporis ^quatione Diatriba, &c. Ill, Marc* 
Malpighi! DiJJertatio Epijlolica de FORMATIONE PVL LI in 
OVO. IV. De MENTE MVMAmLibriquatmri Auth.J.B. 
du HAMEL. V. A Letter e/Francefco Redi concerning foms 
Obje^ions made upon his Obfervations about Vipers together 
vpith a l^eply to that Letter by Moyfe Charas : now both^Ptin* 
ted in Engli/h,Vl, De Gemmuum Origine & Viribos Exer- 
fitatio 5 A, Rob, Boyle : Now Printed m Latin. 
Ffflf An 
