I have no idea what the part in bold is supposed to be about. Could anyone please elaborate?However that may be, the effect of these cannon was very deadly, and at each discharge the combatants fell like ears before a scythe. After such projectiles what signified the famous ball which, at Coutras, in 1587, disabled twenty-five men; and the one which, at Zorndorff, in 1758, killed forty fantassins; and in 1742, Kesseldorf's Austrian cannon, of which every shot levelled seventy enemies with the ground?
Source: The Moon-Voyage : From the Earth to the Moon. : Chapter I. The Gun Club. by Jules Verne @ Classic Reader