for evening assembly, which had been called by Dr. Grayson. Usually
there was no evening assembly; Morning Sing was the only time the whole
camp came together in Mateka with the leaders, when all the
announcements for the day were made. When there was something special to
be announced, however, the bugle sometimes sounded another assembly call
at sunset.

"I wonder what the special announcement is tonight?" Hinpoha asked,
coming up with Sewah and Agony.

"I don't think it's an announcement at all," replied Sahwah. "I think
the professor friend of Dr. Grayson's is going to make a speech. Miss
Judy said he always did when he came to camp. He's a naturalist, or
something like that."

Agony wrinkled her forehead into a slight frown. "I hope he doesn't,"
she sighed. "My head still aches and I don't feel like listening to a
speech. I'd rather go canoeing up the river, as we had first planned."

She sat down in an inconspicuous corner where she could rest her head
upon her drawn up knees, if she wished, without the professor's seeing
her, and hoped that the speech would be a short one, and that there
would still be time to go canoeing on the river after he had finished.

The professor, however, seemed to have no intention of making a speech.
He took a chair beside the fireplace and settled himself in it with the
air of one who intended to remain there for some time. It was Dr.
Grayson himself who stood up to talk.

"I have called you together," he began, "to tell you about one of the