What he saith here of _Rations_ or _Proportions_, and their _Calculus_; for 8. Chapters together, (_Chap._ 11. _&c,_) is but the same for substance, what he had formerly said in his 4th. Dialogue, and elsewhere. To which you may see a full Answer, in my _Hobbius Heauton-tim._ from _pag._ 49. to p. 88. which I need not here repeat. Onely (as a _Specimen_ of Mr. _Hobs_'s Candour, in Falsifications) you may by the way observe, how he deals a Demonstration of Mr. _Rook_'s, in confutation of Mr. _Hobs_'s Duplication of the Cube. Which when he had repeated, _pag._ 43. He doth then (that it might seem absurd) change those words, _aequales {293} quatuor cubis_ DV; (_pag._ 43. _line_ 33.) into these (p. 44. l. 5.) _aequalia quatuor Lineis, nempe quadruplus Recta_ DV: And would thence perswade you, that Mr. _Rook_ had assigned a _Solide_, equal to a _Line_. But Mr. _Rook's_ Demonstration was clear enough without Mr. _Hobse's_ Comment. Nor do I know any Mathematician (unless you take _Mr. Hobs_ to be one) who thinks that _a Line multiplyed by a Number will make a Square_; (what ever _Mr. Hobs_ is pleased to teach us.) But, That _a Number multiplyed by a Number, may make a Square Number_; and, That _a Line drawn into a Line may make a Square Figure_, _Mr. Hobs_ (if he were, what he would be thought to be) might have known before now. Or, (if he had not before known it) he might have learned, (by what I shew him upon a like occasion, in my _Hob. Heaut._ _pag._ 142. 143. 144.) _How_ to understand that language, without an Absurdity. Just in the same manner he doth, in the next page, deal with _Clavius_, for having given us his words, pag. 45 l. 3. 4. _Dico hanc Lineam Perpendicularem extra circulum cadere_ (because neither _intra Circulum_, nor in _Peripherea_;) He doth, when he would shew an errour, first make one, by falsifying his word, _line_ 15. where instead of _Lineam Perpendicularem_, he substitutes _Punctum A._ As if _Euclide_ or _Clavius_ had denyed the _Point A._ (the utmost point of the _Radius_,) to be in the Circumference: Or, as if Mr. _Hobs_, by proving the _Point A._ to be in the Circumference, had thereby proved, that the _Perpendicular Tangent A E_ had also lyen in the Circumference of the Circle. But this is a Trade, which Mr. _Hobs_ doth drive so often, as if he were as well faulty in his _Morals_, as in his _Mathematicks_.