C first) 
IL Trincipia dr Problmata aliquot Geometrica^ ante de§$rata^ 
nunc breviier explicata demonflrata 5 Auth. T. H. Malmef 
burienfi, Londioi -4. /«4% 
THe famous Author of this Traii halving entertained the 
Reader with (ome Generals, concerning the Subjedl, 
Principles and Method of Maihematicksjand with hisDoftrine 
q( Ratio y as alfo his fenfe of Algebraical operatiooSj together 
with two Chapters of Quadrate Figures, Q^nadrate Numbers, 
and Angles J undertakes to confirm his former Doftrine^ i.Of 
the Ratio of the Circumference to th^ Radius of a Circle 5 2.0f 
Mean Proportionals 5 g.Of the Ratio of a Quadrat to theQua- 
drant of a Circle infcribed in it ^ 4. Of Solids and their Super- 
fices.'To which laft helubjoips another Method of demonftra* 
ciqg Solids and their Superfices by their Efficient caufts. Which 
done^ he concludes the Book with a Difcourfc touching De- 
monftrations 5 the principal and moft frequent caufe of Falla- 
cies in the Ma thematicks ^ and the Notion of the word l^fi- 
fitte I Complaining very much, that Geometry hath received 
its grcateft prejudice from thofejthat difcourfc of a Line with- 
out Latitude 5 that take the fide ofa Square for the Root of a 
Number 5 that underftand not the true nature of i^^^i^? 3 and 
thatfpcakunfavourly of/^/i^?7y» Which accufations how well 
they are groundedjwe muft leave to competent judges to de« 
termine* 
IlL An Idea of a Phytological Hiftory propounded h together 
with a Continuation of the Anatomy of Vegetables^ farticw 
larly profecuted upon Roots ^ and an Account of the Y^gtim- 
cnof Kootsgrounded chiefly thereupon. By Nthemiah Grew 
M,D. andFellovp of theKSocmy, London, 167^^ in 8'^, ^ 
THis Learned and loquifitive Author, after the publicati- 
on of his firft endeavors about the Anatomy of Plants, 
(of which an Account was given in N^«?^*; 8 of ih^kTra^sJ 
being refolved upon a further profecotion of them^ hath gweo 
us the Series of hisThoughts and Obfervations following there- 
upon in this his Second Book.diftributed in three Parts* 
The firji contains the AuthofsJdeaoT Dsfigo ofa Phytolo- 
gical Hiftory, tending to the iiBprovement of the knowledge 
of Vegetables : In order wereunto^Fif ^ general Means are by 
him propounded. The firji is a particular and comparative 
Survey of whatever is of more External coofideratioo about 
V Ttttti Vc- 
