"This is delightful!" he exclaimed; "but it is past my comprehension how

Mr. Underwood ever let you slip off alone!"

Mr. Britton looked amused. "I told him I was coming to see you, and I

think he intended coming with me till he heard me order my saddle-horse

for the trip. I think that settled the matter. I believe there can be no

perfect interchange of confidence except between two. The presence of a

third party--even though a mutual friend--breaks the magnetic circuit

and weakens the current of sympathy. Our interviews are necessarily

rare, and I want to make the most of them; therefore I would come to you

alone or not at all."

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"Yes," Darrell replied; "your visits are so rare that every moment is

precious to me, and think of the hours I lost by my absence to-day!"

"Do you court Dame Nature so assiduously every day, subsisting on cold

lunches and tramping the mountains till nightfall?"

"Not every day, but as often as possible," Darrell replied, smiling.

"And I suppose if I were not here you would now be burrowing into that

pile over there?" Mr. Britton said, glancing significantly towards the

table covered to a considerable depth with books of reference,

note-books, writing-pads, and sheets of closely written manuscript.

"Let me show you what I am doing; it will take but a moment," said

Darrell, springing to his feet.

He drew forth several sets of extensive notes on researches and

experiments he was making along various lines of study, in which Mr.

Britton became at once deeply interested.

"You have a good thing here; stick to it!" he said at length, looking up

from the perusal of Darrell's geological notes, gathered from his

studies of the rock formations in that vicinity. "You have a fine field

in which to pursue this branch, and with the knowledge you already have

on this subject and the discoveries you are likely to make, you may be

able to make some very valuable contributions to the science one of

these days."

"That is just what I hope to do!" exclaimed Darrell eagerly; "just what

I am studying for day and night!"

"But you must use moderation," said Mr. Britton, smiling at the younger

man's enthusiasm; "you are young, you have years before you in which to

do this work, and this constant study, night and day, added to your

regular routine work, is too much for you. You are looking fagged

already."

"If I am, it is not the work that is fagging me," Darrell replied,

quickly, his tones becoming excited; "Mr. Britton, I must work; I must

accomplish all I can for two reasons. You say I have years before me in

which to do this work. God knows I hope I haven't got to work years like

this,--only half alive, you might say,--and when the change comes, if it

ever does, you know, of course, I cannot and would not remain here."