{"collection":"aor","html_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/1127.htm","path":"aor/dv/1127.htm","source_url":"https://sacred-texts.com/aor/dv/1127.htm","text":"The Da Vinci Notebooks\nOf mining.If you want to know where a mine runs, place a drum over all the places where you suspect that it is being made, and upon this drum put a couple of dice, and when you are over the spot where they are mining, the dice will jump a little on the drum at every blow which is given underground in the mining.\nThere are persons who, having the convenience of a river or a lake in their lands, have made, close to the place where they suspect that a mine is being made, a great reservoir of water, and have countermined the enemy, and having found them, have turned the water upon them and destroyed a great number in the mine.","title":"Vol. II: XVIII. Naval Warfare. Mechanical Appliances. Music.: 1127.","type":"page"}