100 
THE VOYAGE OF H.M.S. CHALLENGER. 
III. Deep-Sea Waters. 
Analysis. 
Milligrammes of Bromine per kilogram of Sea -water. 
I. Precip. 
II. Precip. 
Total. 
No. 1, 
62-GG 
3-60 
66-26* 
9 
6290 
2-88 
65-78* 
„ 3, 
62-64 
4-14 
66-78 
,, 4, 
62-50 
3-96 
66-46 
Mean, . 
62-67 
3-645 
66-32 
r 0 = . 
±0056 
±0-14 
( hlorlne per kilogram 19*518 and 1 9*538 ; mean, 19*528 ; hence bromine per 100 of 
chlorine 0*3398 ± 0*0007. 
I\ r . The Arran Water. 
Analysis. 
Milligrammes of Bromine per kilogram of Sea- water. 
I. Precip. 
II. Precip. 
i Total. 
No. 1, 
55-38 
3-24 
58-62 
9 
t» • • • 
55-31 
3-78 
59-09 
„ 3, 
54-99 
3-42 
58-41 
,, 4, 
55-38 
3-24 
58-62 
Mean, . 
55-2G 
3-42 
58-69 
**.- 
±006 
±0-10 
' m 17 - !l ; "" 1 1 7*258 : mean, 17*247; hence bromine per 100 of 
chlorine =0*3403 ± 0*000 58. 
Tliinl precipitate on chloiinatir.n gave low of 0 and -01 ingrm. respective! v. 
