The sea west of Spitsbergen; the oceanographic observations of the Isachsen Spitsbergen Expedition in 1910 . 600 metres downwards, and oftenalso at 400 and 500 metres. It did not always close properly, so that someof the watersamples are of no value on account of admixture with waterfrom the upper layers. These cases will be especially noticed in the tables,where a column contains indications of the instrument used. The insulatingwater-bottles were used everywhere in the upper strata, except at thesurface, where the samples were taken with an ordinary bucket, and ata few stations, where Ekmans
The sea west of Spitsbergen; the oceanographic observations of the Isachsen Spitsbergen Expedition in 1910 . 600 metres downwards, and oftenalso at 400 and 500 metres. It did not always close properly, so that someof the watersamples are of no value on account of admixture with waterfrom the upper layers. These cases will be especially noticed in the tables,where a column contains indications of the instrument used. The insulatingwater-bottles were used everywhere in the upper strata, except at thesurface, where the samples were taken with an ordinary bucket, and ata few stations, where Ekmans apparatus was partly employed. Skrifter. I. Kl. 1912. No. 12. 1 HELLAND-HANSEN AND FRIDTI0F NANSEN. Kl. The water-samples were preserved in bottles with patent lever stop-pers of the kind now generally used in oceanographical work ; the bottlescontained about 250 The salinity has been determined by Mohrs Fig. 1. The oceanographic Stations and Sections of the Isachsen Spits-bergen Expedition 1910. Sect. IX (with Stats. 38—40) north of Spits-bergen should he ordinarj chlorine-titration; the titrations were made by Mr. Illit Grondahlin January and February, 1911. He had standard water from the Inter-national Bureau in Copenhagen, and had the silver-solution controlled forevery 10th to 15th titration of the water-samples. The expedition was equipped with two Richter reversing thermo-meters, two Nansen-thermometers for the insulating water-bottles, and twosurface-thermometers. One of the reversing thermometers was useless, as it did not breakoff properly. The other one, no. 60, was better, but not quite trust- igi2. No. 12. THE SEA WEST OF SPITSBERGEN. 3 worthy. Thus it happened in some cases that the thermometer evidentlygave very erroneous results, at Stat. 2, 600 m. (reading — C),Stat. 7, 600 m. (— C), and several readings at Stat. 32 (readingsbelow —30 C, or even below —40 C). The temperatures found atStat.
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