At Sea—An Alarming Cry and a Rescue. “At sea once more!” said Will Osten in a meditative mood. Our hero made this remark one night to himself, which was overheard and replied to by his friend, Captain Dall, in a manner that surprised him. “It’s my opinion, doctor,” said the captain in a low voice, “that this is the last time you or I will ever be at sea, or anywhere else, if our skipper don’t look better after his men, for a more rascally crew I never set eyes on, and, from a word or two I have heard dropped now and then, I feel sure some mischief is in the wind. Come aft with me to a place where we ain’t so likely to be overheard by eavesdroppers, and I’ll tell you all about it.” Will Osten was so much astonished at his friend’s remark, that he followed him to the after part of the ship without uttering a word, and there sat down on the taffrail to listen to what he had to communicate