Notes
No. 1: determination of all the groups of order 168 , no. 2: gravity, true and apparent , no. 3: eugenio beltrami , no. 4: the motion of a projectile in a medium resisting as the cube of the velocity , no. 5: modies of the weierstrass sigma function and the elliptic integral of the second kind , no. 6-7: the order of a certain senary linear group , no. 8-9: biography Cristoforo Alasia , no. 10: the expesion of the nth power of a number in terms of the nth powers of other numbers, n being any integer, and the deduction of some interesting properties of prime numbers , no. 11: a matrix defined by the quaternion group , no. 12: closed loxodromix of the torus