366 DEPARTME'NT OF THE NATAL SERYIUE 



bottom of the channels is covered by slope water with a salinity of 34-27 Voo at 250m. 

 over the Esquiman channel. 



Temperature. — -The surface temperature is comparatively unifoi-m from 11-65° C. 

 at station 40 to 13-45° C. at station 44. The temperature decreases more rapidly over 

 the Natashkwan bank, 8° C. being found at a depth of 8m., while farther out it is found 

 in depth of 18-26m. The layer of negative temperature is more prominent in this part 

 of the gulf in the summer than in the spring, in contrast to the conditions found in 

 the western section. It reaches from o5-60m. down to 150-l70m. The temperature 

 near the bottom (250m.) over the Esquimau channel is 3-75° C. 



Section XII, Stations 50-J!f5. 



This section corresponds to section III of the spring cruises, though farther east, 

 cutting through the northwestern point of C. Breton island. 



Salinity. — Coastal water is found from tbe surface down to 2O-30m. in the 

 southern part of the section, deeper in the south. In the southern half of the Cabot 

 strait, coastal water is found as a layer at the surface 5m. thick. Intermediate water 

 occupies the bottom layers of the southern banks with the exception of station 49, 

 where bank water is found at a depth of 70m. Over the Laurentian channel, inter- 

 mediate water is fomid down to 50-60m. in the larger part of the section, but only 

 down to about 30m. near the Newfoundland coast. Bank water is found at the deeper 

 part of the southern banks and over the Laurentian channel from about 100m. at the 

 southern slopes to 150-170m. near the Newfomidland coast. The rest of the channel 

 towards deep water is filled with slope water with a salinity of 34-70 Voo in 400m. 



Temperature. — The surface temperature is highest in the southern part of the 

 section, with temperature above 16° C. From station 48, however, we find a succes- 

 sive decrease of the temperature, to 12.45° C. near NewfoundlandL The decrease of 

 temperature towards deep water is very sudden from 25m. at the three southernmost 

 stations, while towards the north we find a more uniform decrease between 25 and 

 100m. The layer with negative temperature is at the southern bank found at a depth 

 of about 35-65m. Near to the southern slopes we find cold water in the Cabot strait, 

 too, but no layer with negative temperature. At stations 47 and 46 we find traces of 

 such a layer with temperature about 0° C. at a depth of 10O-125m. This position 

 of the cold water-layer explains the more uniform decrease of the temperature, towards 

 deep water at the northern stations. From this cold water-layer we find an increase of 

 temperature towards deep water, but in such a way as to indicate that colder water- 

 masses are stowed up towards the northern slopes than towards the south. At a depth 

 of 400m. we find temperature of about 4° C. The conditions as regards salinity as 

 well as temperature seem to indicate that the two opposing currents: the outflowing 

 one along the southern shore and the inflowing one along the northern shore, found 

 during the spring, still prevail. 



NOVA SCOTIA AND NEWFOUNDLAND BANKS (TABLE Id). 

 2. C.G.S. "Acadia" (July 21 to 20). 



Section XlII, Stations S7-U- 



The section runs from Shelburne, Nova Scotia, in a southeasterly direction to 

 station 44, off the slopes towards deep water, and crosses La Have bank at about the 

 middle. 



Salinity. — Intermediate water of high salinity (31-water) is found near the 

 coast from the surface down to about 80m. The 32 Voo isohaline slopes steeply 



