Note on the "enumeration of the contacts of lines and surfaces of the second order"

On the expression of the quotients which appear in the application of Sturm's method to the discovery of the real roots of an equation

An instantaneous demostration of Pascal's theorem by the method of indeterminate coordinates

A method of determining by mere inspection the dervatives fron two equations of any degree

On the equation in numbers Ax3+By3+Cz3=Dxyz, and its associate system of equations

On the succesive involutes to a circle

Table des nombres de dérivées invariantives d'ordre et de degré donnés appartenant á la forme binaire du dixiéme ordre

A synoptical table of the irreducible invariants and covariants to a binary quintic, with a scholium on a theorem in conditional hyper-determinants