[ 54^ 3 
cientis termwi o^uarti dmidiumy divifum per a a Later is relti 
. . bbb J pb , , ^ . - 
ejtmramm^ Viz. — ^^^^ "^" 4~a ' "^^^^^ ^ffif^s iq tn 
cmfiruEtione Cartefii fuhit \ unde centrum E detcrmmtur. 
Deinde du6ta Axi paratieU ad difinntUm % b ad finijlrum eju4 
Utm ( oh ih=z) cuju'S mterfe^iio cum PardoJa fit O 
circdus centra E, Radio EO defer if tus Para, oUm Jccet vel 
tanget in tot f met is c^not a^uatio veras hahet radices : qua qui" 
dem radices fen z fmt ferpendicula de f metis illis in Axi f»ral^ 
lei am demijfa-^ad dextram qnidem A^mati^udt^Negativ^^ ad 
fmifiram. 
Si in dtquatione defuerit terminus tertius vel (partus vel u* 
terq\ y in invefiiganda regulacentrali nulla omnino ohfervand^ 
eflr methodus differ entia^ fed deficient e quant i t at velq, de^ 
erunt partes ill.^ linear urn CD acDEex qumtitate ilia, aliqua 
modo deductSy ac frocedendum efl cum r^liquis coeffi€ient3?us 
termini tertii & quart i in aquatione nova^ ficut in fr^amijjis 
exemplis prafcriptum efi* 
Hactenus CL Bakeri methodumgeneralem pertractavimusy 
qua qui dem nulla aUa facilior ac paratior expectanda^efiy affump^ 
ta ad conflructionem five Parahola^five alia quavis linen curva^ 
cum fcilicet aquatio ad Biquadraticam afcendit, Ktenim dum 
hdc fcriho mihi occur r it reguU Centralis Effectio Geometrical 
prater cmnem j}em expedita^ ac harum rerum Curiojis abunde 
fatiffaitura, 
Defriptd Pardola N A M, cujus vertex A, Axis ABC 
ac lai'js rectum a, redmatur aqmtio ad banc formam z"*". b z^. 
a p z z. a a q z. v. — o vel ad banc i? . b z z. a p z. a a q^ 
— ^fi cuhica tantum fuevit : dein ad dijlantiam B D = ^ b 
ducatur lineaDH Axi parallela, ad finiflram quidem fifuerit 
• — - b, ad dextram f-jf- b, parabola occurrens in punctoDy de 
quo dimittatur perpendiculum in axem B D. In line a A B con* 
tinuata v erf us B fiat B K = i a, & ducatur line a D K utrinq ; 
interminata. Porro fitl^C — 2 AH in Axe femper ultra K 
continuato \ ac ft baheatur quantitas p figno — affect a, verfus 
eafdem partes etiam fum&tur C E =; ^ p, vel in contrarians j 
