See EEE RESESRNEESenietene dei. acc 
Fig. 17 
CwTs. 
1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 
7 1902 
Mean Monruty Catcu oF Lance anp SmaLL WaitcuEs IN Cwrs. per 100 Hours’ TrawLinc ww Arma X. (SMooTHED) 
(Black line, Large Whitches ; broken line, Small Whitches.) 
CwTs. 
1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 12 Ss*F ig. 18 
ae 
[ Tgtot TI 
(Black line, Large Whitches ; broken line, Small Whitches.) 
~ 
sts nisl 
