**As** **an** **appendix** **to** **the** **latter** **appeared** **his** **De** **linearum** **geometricarum** '**proprietatibus** **generalibus** **tractatus**, **a** **treatise** **of** **remarkable** **elegance**.

**Another** **of** **his** **works**, **Recensio** **canonica** **effectionum** **geometricarum**, **bears** **a** **stamp** **not** **less** **modern**, **being** **what** **we** **now** **call** **an** **algebraic** **geometry** - **in** **other** **words**, **a** **collection** **of** **precepts** **how** **to** **construct** **algebraic** **expressions** **with** **the** **use** **of** **rule** **and** **compass** **only**.

**Again** **in** **Latin**, **with** **the** **title** **Institutionum** **geometricarum** **libri** **quatuor** (**Arnheim**, 1605).

**Various** **properties** **of** **curves** **in** **general**, **and** **of** **cubic** **curves**, **are** **established** **in** **Colin** **Maclaurin'****s** **memoir**, "**De** **linearum** **geometricarum** **proprietatibus** **generalibus** **Tractatus** " (**posthumous**, **say** 1746, **published** **in** **the** 6th **edition** **of** **his** **Algebra**).