His report covers his studies of applied mechanics as well as his discussions with French mathematicians including Liouville, Bienaymé, Hermite, Serret, Lebesgue, Poncelet, and English mathematicians including Cayley and Sylvester .
Ang kanyang mga ulat na sumasakop sa kanyang pag-aaral ng inilapat mechanics pati na rin ang kanyang mga talakayan na may French mathematicians kasama ang Liouville, Bienaymé, Hermite, Serret, Lebesgue, Poncelet, at English mathematicians kasama ang Cayley at Sylvester.