"Hurrah!" shouted all the boys.

"Two of these boats, you perceive, carry twelve oars each. The crew of
the Zephyr will man the Bluebird."

The Zephyrs obeyed the order.

"The crew of the Butterfly will man the Rainbow," continued Captain
Sedley.

The Butterflies seated themselves in the new boat.

"This is merely a temporary arrangement, and when we get the other
boats, we shall organize anew. We want practised oarsmen for our present
service. While we are absent, Uncle Ben will instruct the rest of the
boys in rowing."

Captain Sedley and Mr. Walker then seated themselves in the stern sheets
of the Bluebird.

"Now pull for Center Island," said the former. "Tony, you will follow
us."

The two boats darted out of the inlet, leaving Uncle Ben in charge of
the "recruits."

The Lily and the Dart were eight-oar boats, while the Dip carried only
four, and was designed as a "tender" for the fleet. Uncle Ben assigned
places to the boys, though there were about thirty left after the oars
were all manned. After an hour's drilling, he got the crews so they