Show cannon of solid rock when the island of malta was under the rule of the knights of st john they defended their fortification with cannon bored in the living rock each one of these strange weapons con talked an entire barrel of powder and as it was not possible to vary the aim of these cannon 60 were made ready facing various directions from which the enemy might approach when the fame of these arms of de tense became known to the world the dea was taken up of transporting rocks to summits to serve the same purpose but it was soon recognized to be impracticable and the cannon of malta bored in solid rock have passed into history as the sole weapons of the hind ever known harpers |