277 



NOTES ON THE TABLES 



Table I (p. 252) shows the number of whales of each species effectively marked on 

 each expedition. These numbers have been arrived at in the manner explained on p. 253. 

 It should be understood that these numbers will probably change, for marks originally 

 logged as misses etc. may be recovered, or two marks thought to be in different whales 

 may be returned from the same whale ; but these changes will be insignificant. 



Table II (p. 258) gives the number of Blue whales killed in each group for each 

 season's marking. The whales marked by the ' Discovery II ' are omitted from this and 

 the two following tables (III and IV). The total numbers of whales effectively marked 

 during each season, the sum of the South Georgia and 'William Scoresby' marking, 

 are given in the first column of figures. In the other columns are given the numbers of 

 marked whales reported killed during the same season as they were marked and during 

 each of the subsequent seasons. Table III (p. 261) and Table IV (p. 272) give the same 

 data for Fin and Humpback whales respectively. Some of these whales have been taken 

 in warm waters in the southern winters during the period between the Antarctic whaling 

 seasons. These are the ^-Groups. 



Table V (p. 274) gives the numbers of Blue, Fin and Humpback whales effectively 

 marked and the numbers of these killed in actual figures and as a percentage of the total 

 marked. 



Tables VI, VII and VIII (pp. 278-282) present a complete list of the returned marks 

 for each species. The date and position of marking and the date and position of recovery 

 are given. The marks are arranged in the groups corresponding with those in Tables II- 

 IV. Within these groups they are arranged according to the season of marking, and for 

 each season those marked around South Georgia from the whale-catcher precede those 

 marked by the 'William Scoresby'. In each of these minor categories the marks are 

 arranged numerically, and this gives almost complete numerical order for each group. 



In one or two cases no data have been supplied with the returned marks ; in others 

 approximate dates and positions of recovery have been given, chiefly for marks returned 

 from Humpbacks captured off the north-west coast of Australia. Where the position 

 of capture has been given as the " N.W. coast of Australia " it has been considered to be 

 "ca. 25 S, 113 E". Similarly, no exact position of marking for some whales marked 

 in the vicinity of the Shag Rocks is available ; for these, the actual position of the Shag 

 Rocks, 53 33' S, 42 02' W, is given as the position of marking. 



The length of time in days between marking and capture is given as "the period of 

 freedom"; in calculating this the day of marking and the day of capture are both 

 considered to be a complete day. 



In those instances where two marks have been recovered from one whale, the two 

 final digits of the number of the second mark are given after a stroke, it being under- 

 stood that the preceding digits are the same as the corresponding digits of the accom- 

 panying mark. One exception occurs where the two marks are numbered 656 and 1229. 

 This convention is also used in the text and on the charts. 



