In each tunnel was the same pile of ore awaiting them, and it all looked good.

That in number three was the richest ore of all.
"Now, I think we have seen enough for today," announced Don Luis, when they had inspected number three tunnel.
"Then if you will go along and let me join you later, I shall appreciate it," Tom suggested politely.
"You wish to linger ?" queried Don Luis, looking amused.
"I wish to see a blast made here," Tom replied.
"I, too, would like to see one," Harry added.
"Then we will wait for you," agreed Don Luis, with a sigh that contained just a trace of impatience.
A drilling and a blast were made.

Again a lot of poor rock was loosened.

Tom and Harry collected specimens, labeling them.
"Now, we will return to the house," said Don Luis.
"I would really like to put in a long day here at the mine," proposed Reade, reluctantly.
"To-morrow, then," nodded Don Luis.

"But, for to-day, I am tired of this place.