grade," grunted Hazelton.
"See, here are the surveyor's field notes." "Three per cent.

grade," insisted Tom, holding forward Black's leveling notes.
"There's a difference there, then, that must be reconciled," broke in Mr.Thurston, rising, a look of annoyance on his face.

"We can't have any such disagreement as that between the field map and the profile sheet.

Let us find out, at once, where the trouble lies." Yet the more the three pondered over the matter the greater became the puzzle.

The notes of the surveyor, Matt Rice, and of the leveler, 'Gene Black, were at utter variance.
"We must get hold of these men as soon as they come in tonight," exclaimed Mr.Thurston, much disturbed.