436 CAPE ST. JOHN TO CAPE BONAVISTA. 



Hennessy and Three Arms islands lie in the entrance of Middle 

 arm. The eastern end of Hennessy island lies eastward 2,300 yards 

 from Blackberry head, and the island thence extends west-south- 

 westw&rd 1,800 yards. It is of very irregular shape and much broken 

 up; its highest part is 205 feet high. Foul ground extends 200 

 yards off its coasts in places. Three Arms island extends from 150 

 yards southwestward of Hennessy island, 1,200 yards south westward, 

 and its width varies from 100 yards to 400 yards; its height is 150 

 feet. 



Old Billy, a rock with 3 feet water over it, lies on a ledge which 

 stretches eastward 300 j^ards from the northeastern end of Three 

 Arms island. 



The channel westward of Hennessy and Three Arms islands re- 

 quires local knowledge for its navigation, as its narrowest part is 

 only 150 yards in width, and a shoal extends over 100 yards from the 

 western side of Three Arms island. 



South Arm point, the southern entrance point of Middle arm, 

 bears southward 750 yards from the eastern end of Hennessy island. 

 At 100 3^ards off the southeastern shore of the arm, 700 yards west- 

 ward of the point, is a shoal with 12 feet water over it, and at 800 

 yards farther west-southwestward Long rocks extend 100 yards off the 

 shore. The channel between Long rocks and the shoal water south- 

 ward of Old Billy is somewhat more than 100 yards wide. 



Middle arm runs ly^o miles in a west-southwesterly direction from 

 the southern end of Three Arms island, with a width of about 300 

 yards, and it affords excellent anchorage in 10 to 15 fathoms of water, 

 mud bottom. On its northwestern side, at 950 yards southwestward 

 of Three Arms island, are a conspicuous stage and a few houses. The 

 arm is clear of shoals at about 80 yards off its shores. A sunken 

 bowlder about 50 yards off the southern shore, at 200 yards distant 

 from the head, must be avoided in anchoring. 



Directions. — When northward of South Arm point bring the stage 

 on the northwestern shore of the arm just open southwestward of 

 Three Arms island, bearing 244° ; keep this mark on until the western 

 end of Hennessy island is just shut in by the eastern end of Three 

 Arms island, bearing about 339°, and then in mid-channel to the 

 anchorage. 



Southern arm extends southwestward in nearly a straight line, 

 4| miles, from southward of South Arm point to its head, with a 

 width of 600 to 200 yards. 



Small island lies in the middle of the arm at If miles southwest- 

 ward of South Arm point ; a shoal with 1 to 4 fathoms water over it, 

 having a rock that dries 2 feet near its northern end. extends north- 

 ward a little over 200 yards from the island, while at 150 yards 



