i i6op ) 
ex vertkali, ex later ali 5 and in the Hyperbola from the 
Modulus ex Afymptoto^ Triangulum cirmmaUum a Syit/pa- 
tale^ &e. all which he there defines^ 
Part 2. Prop. 35. Shews that the Altitudines NortfiA- 
Hum (or the Submrmalcs^ in all the Conick Sefiion?, ereft- 
ed from the points ot the Axisy where the Ordinates are 
ereded. are ad Locum planum : And Prop. p. g6 and 37^ 
that the Normaks to a right Line and a Circle er efted 
as above ( which is e%^er under ftood) zt^ ad Locum pU^ 
ftum 5 but in the 58 and on;tG the 42, that the Normaks 
of the Conick Sections are ad Locos Soiidos^ which he 
there determines. 
Part^. Prop. 43. fliews that in all the Conick Sedi* 
ons and Circle, the Altitudines Normalmm fuper Ramos 
ex vertice are ad Locum Planum 5 but from thence to the 
49^ that the Normaks fuper Ramos ex vertke are ad locos 
Solidos , which he there determines. 
Part 4* In the firft three propofitions from the 50 to 
the 52 inelufive, he determines the L$cus Solidus of the 
Rami from the Vertex of a Circle, or from an Origine 
betwixt the Vertex sand the Center, or without the 
Circle. Prop. 53, he fhews that the Rami from the? Fo- 
cus of any Conick Seftion eredted to the Axis are ad 
Locum planum of a right Line there determined. In the 
following Prop. p. to the 58 he deterpiines the Z^ri 
made by the Ordination of the Rami of a Parahola^ 
drawn trom the principalJ^^r/ex, and from an Origine in 
the Axis betwixt the Vertex and the Foci^s^ and below 
the Focus^ and above or without the Vertex. In the next 
four to the 62 he determines the LoctSohdi made by the 
Ordination of the Rami drawn from the Origine in the 
LelTer Axis of an £////>yi> 5 to wit, either the Vertex^ the 
Center ,betwixt the Vertex and Center^ or without the Ver- 
ier. From the 63 to the 68 he determines the l oci SoUdi 
ma by the like ordination of t)\t Rami upon the gre. t- 
€r Axis of m EMipJ/s. From the 6^ to the 77 the like: is 
Sfffifnr done 
