Seated in one chair was Dr.Thornton; in another chair Mr.Morton.

And Dick Prescott was there, but gathering up his writing materials as though about to go.
The chairman waited in silence until Prescott had passed out of the Board room.

After the clerk had closed the door the chairman announced: "The Board is now in executive session.

Dr.Thornton, we will listen to the matter which we understand you wish to bring before us for consideration." Composedly Dr.Thornton stepped to the edge of the table, standing there, resting his left hand on the table as he began to speak.
In simple words, without any visible emotion, the High School principal stated what he understood of the receipt of copies of the football signal code by the captains of rival football elevens.
Next Mr.Morton took the stand, so to speak, and went much more into detail.

He told what the reader already knows, producing several of the copies returned by the honorable captains of other school teams.
Then Mr.Morton put in evidence, with these copies of the code, copies of business letters received from Drayne's father, and presumably written on the Drayne office machine.
"If you examine these exhibits, gentlemen, I think you will agree that the betrayed code and the business letters were written on one and the same machine.