'Is it so hot down there?'

'Well, it's hot. There's no denying it. And yet maybe it is not hotter than the barometric pressure and the confined space might account for. Of course, the ventilation is awful. We pump the air down, but two-hour shifts are the most the men can do – and they are willing lads too. The Professor was down yesterday, and he was very pleased with it all. You had best join us at lunch, and then you will see it for yourself.'

After a hurried and frugal meal we were introduced with loving assiduity upon the part of the manager to the contents of his engine-house, and to the miscellaneous scrapheap of disused implements with which the grass was littered. On one side was a huge dismantled Arrol hydraulic shovel, with which the first excavations had been rapidly made. Beside it was a great engine which worked a continuous steel rope on which the skips were fastened which drew up the debris by successive stages from the bottom of the shaft. In the power-house were several Escher Wyss turbines of great horse-power running at one hundred and forty revolutions a minute and governing hydraulic accumulators which evolved a pressure of fourteen hundred pounds per square inch, passing in three-inch pipes down the shaft and operating four rock drills with hollow cutters of the Brandt type. Abutting upon the engine-house was the electric house supplying power for a very large lighting instalment, and next to that again was an extra turbine of two hundred horse-power, which drove a ten-foot fan forcing air down a twelve-inch pipe to the bottom of the workings. All these wonders were shown with many technical explanations by their proud operator, who was well on his way to boring me stiff, as I may in turn have done my reader.