PASSAGES. 



69 



and thence on Great Circle course (nothing to tlie northward) to 

 Fastnet rock or Bishop rock, always keeping southward of the lati- 

 tude of Bishop rock when bound to the English channel. 



If from Boston steer directly for lat. 42° north, long, 60° west, 

 and thence as above. 



Note. — Occasionally ice extends over a larger area than usual, and 

 owing to its presence on the above routes it is necessary temporarily 

 to modify them. Thus in 1903, 1904, and 1905 from about early in 

 April to mid-June or early in July, westward-bound vessels crossed 

 the meridian of 47° west, in lat. 41° north; and eastward-bound 

 vessels crossed the same meridian in lat. 40° 10' north. 



Notice is given of any change in the routes, which is previously 

 agreed to by the various steamship companies concerned. 



JANUARY 15 TO AUGUST 23, BOTH DAYS INCLUSIVE. 



Courses (true) and distances (in nautical miles) : Sandy Hook 

 light- vessel to 70° west (in 40° 10' north), 95° 50', 177 miles; to 

 cross the meridian of 47° west in 41° north, 87° 17', 1,055 miles, from 

 this last position nothing north of the Great Circle to Fastnet, when 

 bound to the Irish channel, and nothing north of the Great Circle 

 to Bishops rock, when bound to the English channel. 



Great Circle to Fastnet. 



Distance on Great Circle, 1,651 miles. Total distance, Sandy Hook light-vessel 



Fastnet, 2,883 miles. 



to 



Great Circle to Bishops rock. 



Distance on Great Circle, 1,764 miles. Total distance, Sandy Hook light-vessel to Bishops 



rock, 2,996 miles. 



AUGUST 24 TO JANUARY 14, BOTH DAYS INCLUSIVE. 



Courses (true) and distances (in nautical miles) : Sandy Hook 

 light-vessel to 70° west (in 40° 10' north), 95° 50', 177 miles; to 

 cross the meridian of 60° west in latitude 42° north, 76° 23'. 467 miles ; 



