1157 
correlation; in Fig. 3 the curves representing. the departures in 
water level (6) and strength of the trade (a) are given. 
1902 3903 1904 1905 1906 1907 =. 1908 1909 1910 199) 1912 
Fig. 3. 
FABEE OX. 
+ | ee EE CTI sae 5 1 an Ex “7 
1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 1911 1912 Corr. 
| | | 
—92mM.| H15 | +1 | —23 | 44 
—0.18 a Sat oy 4alC0.09|<b: rakis0! tal - ovaal wo. adlko tale. het Aug. | 0.24 
| 
| —18 | —23 | +27 | +37| +9 | +65 | 
Tt 
} 
| 
| 
—0.38 |—0.16|+0.35/-+0.05/—0. 120. 13/—0.07 +0.07/-+0.11/—0.30'-+0.25| Sept. | 0.55 
Pi 
—0.42 |_0.02-40.26 40.12 0.20 +0.19)—0.20}-+0.14-+0.08)—0.24 +0.34 Oct. | 0.65 
| | | | | 
| 
—0.45 |—0.16|+-0.28'-+-0.22,—0.25/+-0.38 ue MRR rd hd +0.02 
| 
40.21 Nov. | 0.46 | 
—0.42 —0.04'-40.19-+0.18 —0. 1840.32 — 0.46 —0.02-+0.17—0.08/-40.34 Dec. | 0.59 
The answer to the question put in the beginning of this chapter, 
is therefore, that when we have to do with somewhat important 
