CHAPTER XX.

Beagle sails from San Carlos--Enters Strait--Harbour of Mercy--Cape Pillar--Apostles--Judges--Landfall Island-- Cape Gloucester--Dislocation Harbour--Week Islands-- Fuegians--Latitude Bay--Boat's crew in distress--Petrel-- Passages--Otway Bay--Cape Tate--Fincham Islands-- {xxvii} Deepwater Sound--Breaker Bay--Grafton Islands--Geological remarks--Barbara Channel--Mount Skyring--Compasses affected--Drawings--Provisions--Opportunities lost 360