note * page 34 These are sometimes omitted in the case of surface samples.

note * page 44 See Dittmar, , Phys. Chem. Ghall. Rep., I. pt. i. 1884.Google Scholar

note − page 44 Ed. New Phil. Journ., xxxvi. p. l.j

note * page 45 Brit. Assoc. Reports, 1855, ii. 64.Google Scholar

note + page 45 Proc. Roy. Soc. Edin., V. (1866), p. 370.Google Scholar

note * page 46 Vierter Bericht fü die Jahre 1877 bis 1881, Berlin 1884,—Periodische Schwankungen des Salzgehaltes im Oberflachenwasser in der Ostsee und Nordsee, von Dr Meyer, H. E..Google Scholar

note * page 52 Omitting the day of high flood in the river mean = 1.02382.

note * page 52 Omitting the day of high flood in the river mean=1–02438.

note * page 56 Proc. Roy. Soc. Ed., xii. 927.

note * page 58 These samples froze in the bottle before the density was determined

note * page 60 River in flood.

note * page 61 Uncertain.

note * page 63 Bottom sample.

note † page 63 Sample from intermediate depth.

note ‡ page 63 Water noted as full of particles.