to Moran’s instructions. Then she once more fastened the paper to his collar and pointed off in the general direction taken by Moran.
“Go, boy!” she urged. “Go! Moran! Moran! Take it to Moran, Flash! Go!
Flash knew that she was sending him away. He knew that she spoke of Moran but his mind was still hazy as to just what was wanted of him. Once more he merely followed his natural inclination and returned to Moran.
Each time this was repeated they unfastened the paper the instant he arrived at either end, examining it and praising Flash, at the same time holding the note out for him to inspect. After a few trips he knew what was expected of him—traveled between them with a certain knowledge that this was what was meant by their commands. However, the reason for this was not as clear to him as the mere fact itself. At last the light began to dawn, slowly at first, then with a sudden full realization of the truth. This from constant repetition of one thing! The paper was each time held out for him to sniff. At first it meant nothing to him. Then, in a vague way, he came to know that it concerned these trips. When either Betty or Moran picked up a slip of paper Flash was instantly alert, know-
