( 5048 ) 
6. De SeBione lineA reUa extremh & medik ratipne* 
7» De Polygonii regular iyns» 
8. De s^^quatione ltne(& RcUa & Arcus circuH, 
9. De Tangent e arepts ^radmm 22 }» 
10. De Prudentia ad flndinm Geometric necejfaria, 
11. De I at eye Ic^faedri» 
IS. De ^^adraturaCirculi, 
13. De natma Libr<z.. 
A Reply to thcfe Animadverfions , being cxpcfted from the Pcrfoa 
concerned, will probably be inkrted in the next following Number. 
II. OVTl^E de PORTRAITVRE & PEINTVRE, eontenant U 
PerJpeEiive SfecuUtive & Pratique accom^lie ^&c,Par Gregoire Haret, 
Dejffiigmteur & Graveur Ordinaire de la Malfon du Roy^ de fAcade- 
mie Roy ale de Peinture & Sculpture, ^ Paris, 1670. in Fol, 
His Elegant volume in i^r^';?^/? dcclareth the chief aim of its Au- 
thor in the compofition thereof to have been, to contribute what 
he could to the inftruAion and improvement of youth, ftudious of 
thefe excellent Arts, and grounded! y to teach them the Rules and o- 
ther means,that arc really ufeful and abfolutely neceffary to them in 
the fame, fo that they may both make ufe of them, and difcern them 
from abundance of falfe andimpcrfed ones,that,he eftceras,havc been 
delivered to them in rao^ of the Trcatifes hitherto made about this 
fubjed. 
Jn the performance of which, he divides this Volume iiato two 
parts ; The Firfi contains the accoraplifli't ffor fo he calls it) Pra^i- 
eal Perfpedivc, torcprefent the fumptuous Architedures of the mod 
magnificent Buildings in Perfpedive,by two wayes ; the former (hew- 
ing the means to arrive to a compleat cxadnefs, butfuch as are only 
taught to inform the underftanding, and not to be pradifed, if you 
will BOt : the latter containing the iliorteft and eafieft means of all that 
have been publiUi't hitherto ^ and that for general pradifc, and all 
without ufing any point of diftance nor Geometric plane. 
The i'^rf?;^ part difeourfcs of Speculative Perfpedive-S ^i<'. of the 
Dempnftrations and Explications of the Fundamental Secrets of the 
Rules or Means contained in the Firftpart; together with themoft 
Curious and moft Confiderable Queftions, that have been hitherto 
propofed upon this argumene of Pourtraiture and Pidurc, with their 
Solutions. 
^ About the end of this Book the A uthor annexes an Accompt and 
Tome Remarqucsof his, concerning the Dcfign of M. Defargues*s 
Rough- draught of his Trtatife oiCm^^UfSy cntituled Lemons ae Tene- 
hres. 
We muft not omit to take notice here, that in the Extrad of the Pri* 
viledge given to this Book fpag. 159, ) mention is made of two other 
Books 
