Hawaiian Islands. The wind data (table 1) were based on the U. 3. Kavy Hydro- 

 graphic Office Pilot Charts (H. 0. 1401) and give the mean force and the percentage 

 of the ships' wind observations that were reported for each cardinal and intercar- 

 dinal point. The percentages were computed by averaging the values for the 5° 

 squares between 15°N. and 25^. latitude at 150°W. to 155°V;'. longitude. 



Table 1. — Average force (Beaufort) of the wind and percentage of 

 ship's observations reported from each of the cardinal 

 and intercardinal points of the compass' in the area 

 east of the Hav^aiian Islands. (H. 0. 1401) 



The monthly current data (table 2) were computed from the U. S. Navy 

 Hydrographic Office Current Atlas of the Northeastern Pacific (H. 0. 570) in the 

 same manner as the monthly wind data. The velocities are given in increments of 

 0.33 knots, which probably represents the limit of accuracy of the ships' observa- 

 tions on which they are based. At the foot of each monthly column is a mean direc- 

 tion for the month which has been taken from the current arrows given on the Pilot 

 Charts (H. 0. 1401). 



