AGASSIZ: THE GREAT BARRIER REEF OF AUSTRALIA. 145 
EXPLANATION OF THE PLATES. 
PLATE I. 
Northwestern Point of Middle Island (Edgecombe Bay) seen from the North. 
Mainland in distance (Cape Gloucester). 
PLATE II. 
Shore Edge of Flat off the southwestern part of Middle Island, low water. 
PLATE III. 
Eastern part of Middle Island ; Flat to the south of the Island, and pile of Coral 
Débris. 
PLATE IV. 
Coral Conglomerate on the shore of Middle Island. 
PLATE V. 
b Reef (off Endeavour Reef) from the eastward. 
PLATE VI. 
Flat off the southern point of the most eastern of the Hope Islands. 
PLATE VII. 
Three Isles, northern extremity. 
PLATE VIII. 
Beach on the east side of Three Isles. 
PLATE IX. 
Negro Heads off the east side of Three Isles. 
PLATE X. 
Elevated reef rock, Lagoon side of Three Isies. 
