observed at the ruin RTth aah it is affirmed that a watch is 
kept there without interruption. _ 
The islands and the mainland appear from the water to be 
covered with dense forests, save for occasional low limestone 
bluffs and strips of sand along the beaches, and present a most 
monotonous appearance; but the region is rendered extremely 
interesting by its aeenesyeeeeae remains, encountered at every 
turn by its peculiar geological formations, its almost unstudied 
botany and the marvelous transparency and iridescent beauty of 
its island enclosed waters. Nearly two weeks were spent in 
cruising about from place to place, the Indian villages of Dolores, 
on Mugeres Island, and San Miguel, on Cozumel, being made the basis 
of opperations. Before leaving these waters a run was made down 
the coast to secure a glimpse of the great ruin of Tuloom, now oc- 
