INTERNATIONAL CONVENTION SAFETY OF LIFE AT SEA. 237 



N. B. — If the message contains the word "weather," all the code groups before that 

 word give information relating to ice, and those after the word "weather" give meteorological 

 infonnation. If there is no word "weather" in the message, it only contains information 

 about ice. (See examples of the two kinds of message given in this Article.) 



Part I. 



ICE AND DERELICTS. 



Information respecting ice and derelicts is given by means of ten figures divided into 

 two groups of five figures each. These groups are preceded by the word "ice." 



Two figures The day of the month (dd), according to Code I. 



One figure The time of observation (T), according to Code II. 



One figure The kind of ice observed (/), according to Code III. 



Three figures . . . .The latitude of the ice observed (ppp) to tenths of a degree (see table 



below). 

 Three figures . . . .The longitude of the ice observed (p'p'p') to tenths of a degree (see table 



below). 



The first group consists of ddTIp. 

 The second group consists of ppp'p'p'. 



CODES. 



Code I. — Day of the month. 

 The day of the month is given by two figures, of which the first may be zero: 01 to 3L 



Code II. — Time of observation. 

 The time of observation is included between — 



Greenwich mean time. 



Code No. 



1 a.m. and 4 a.m 1 



4 a.m. and 7 a.m , 2 



7 a.m. and 10 a.m 3 



10 a.m. and 1 p.m 4 



1 p.m. and 4 p.m. 5 



4 p.m. and 7 p.m 6 



7 p.m. and 10 p.m. 7 



10 p.m. and 1 a.m i 8 



Code III. — Nature of ice or derelict observed. 



0. No ice observed. 



1. Single iceberg. Huge mass of floating ice. 



2. Several icebergs. 



3. Numerous icebergs. 



