Upon arrival at the bottom we were surprised to find it free from water, save for a trickling stream. The second thing we discovered was a pile of huddled skeletons of the workmen who had perished over a century previous. But our third and most important discovery was a boring from which the poisonous gas was slowly issuing. It took but a few hours to provide an apparatus to fire this gas as fast as it issued, and the potash mines of Stassfurt were regained for the world. My associates were for beginning mining operations at once, but I had been granted a twenty years' franchise on the output of these mines, and I was in no such haste. The boring from which this poisonous vapour issued was clearly man-made; moreover I alone knew the formula of that gas and had convinced myself once for all as to its man-made origin. I sent for microphones and with their aid speedily detected the sound of machinery in other workings beneath. It is easy now to see that I erred in risking my own life as I did without the precaution of confiding the secret of my discovery to others. But those were days of feverish excitement. Impulsively I decided to make the first attack on the Germans as a private enterprise and then call for military aid. I had my own equipment of poisonous bombs and my sapping and mining experts determined that the German workings were but eighty metres beneath us. Hastily, among the crumbling skeletons, we set up our electrical boring machinery and began sinking a one-metre shaft towards the nearest sound. After twenty hours of boring, the drill head suddenly came off and rattled down into a cavern. We saw a light and heard guttural shouting below and the cracking of a gun as a few bullets spattered against the roof of our chamber. We heaved down our gas bombs and covered over our shaft. Within a few hours the light below went out and our microphones failed to detect any sound from the rocks beneath us. It was then perhaps that I should have called for military aid, but the uncanny silence of the lower workings proved too much for my eager curiosity. We waited two days and still there was no evidence of life below. I knew there had been ample time for the gas from our bombs to have been dissipated, as it was decomposed by contact with moisture. A light was lowered, but this brought forth no response. I now called for a volunteer to descend the shaft. None was forthcoming from among my men, and against their protest I insisted on being lowered into the shaft. When I was a few metres from the bottom the cable parted and I fell and lay stunned on the floor below. ~2~