80 
70 
60 
30 
80 
70 
60 
50 
40 
30 
20 
10 
1903 
1904 1905 1906 : 1907 
-4908ti(‘<‘«‘;*‘«iN GO aa i gl Sie 
ey ae _— 
Ht 
| 
Mean Monruty Gatco or Copiinc 1x Owrs. per 100 Hours’ TrawLine mn Arga XIV. 1904-1911 (SmootueD CoRVE) 
1904 1905 1906 
1907 
1908 1909. 1910 1911 1912 Fic. 8 
| HEE 
MgAN Mowtuiy Catcu or CopLinc In Cwrs. PER 100 Hours’ TRAWLING IN Arga XVII. 1903-1911 (SmooTaED CURVE) 
We 2166 500 II/1d MFAE 
