C ^^7 ) 
Then follows a Difcourfe in Defence of the Chriflian 
Sahhath^ to be celebrated on the Lord's Day^ or Firji 
Day of the Week : Being the Subftance of Two Treati* 
T^j,* publillied in Englifl^y in the Years 1692,1693, in 
Vifidicition of the Lord s Day^ againft fome Treatifes 
of T. B, contending for the Jews Saturday-Sahhath to be 
now obferved. Which Two Treatiles are here made La- 
tine^ and digefted into another order : Wherein the 
whole Controi^erfie is managed at large, and many Oc- 
cafional Points therein dilcufled ; which feem not to have 
been fo well coofidered by former Writers. With feve- 
ral Particulars Hiftorical, Chronoiogical, and Cofmo- 
graphical, which are there occafiooally difcufled and 
cleared. 
And laftly, There is a fnort Difcourfe of ?£do Bap* 
tifm, in AnfU'er to a Letter of an Anti Pado Bapttfl, de> 
livering Satisfaftion as to that Point. 
VJhkh Mifcellaneous Treatifes (if thought not fo pro- 
per to be fubjoined to the Dircourfes purely Mathemati" 
cal) are fo ordered as that they may be feparately bound 
apart. 
Dr. Wailis having fo highly obliged the Worlc} with 
his own Works, and thofe of fome of the Ancients^ 
part of which, as the Harmonkks ot Ftolomy^ &c. (had 
it not been for him) in all likelihood would never have 
feen the Light in their Original Language 1 being, for 
their Imperiedions defpaired of^ ever fmcQ the Reftau- 
ration'of Learning : We cannot but (with all who know 
him) wifli and hope that he would be pleafed (if his 
great Age may permit) to<i^dorn the fucceeding Centu- 
ry alfo with the Edition of fome other of the Ancient 
Geometers in Greek, as A^ollonius^ Serems, or Pappus ^ 
which (by the Catalogue of ManufcriptSj lately pub- 
Q, q 2 iiftied) 
