"Yes, my friend," replied the engineer, "and this nitro-glycerine will produce so much the more effect, as the granite is extremely hard, and will oppose a greater resistance to the explosion."
–Sí, amigo mío –contestó el ingeniero–, y esta nitroglicerina producirá tanto mayor efecto cuanto que el granito es muy duro y opondrá mayor resistencia para estallar.