112 



iarilier tlinn the edjue of the Grand Bank. There ^vere tracoc of an 

 arctic- inHuence at station 400 which crept southward on the bottom 

 of the Bank, but such a movement was small, as evidenced by the 

 salinities and temperatures at this station. 



STATIONS 406 AND 407 



Station 406 was taken April 18 on the eastern side of Trepassy 

 l^av. well up near its head. Information was desired as to the range 

 of the temperatures and salinities and also the possible extent of 

 Arctic intrusion. Salinities were uniformly 32.27 Voo from the sur- 

 face to the bottom, and the water Avas 0.1° on the surface and —0.2"^ 

 on the bottom. The water therefore Avas fresher but not so cold 

 here as on the seaward side of Cape liace, as show^n by station 405. 

 The Coast Pilots all mention an indraft on the east side of Trepassy 

 Bay and the records obtained l)y the i)atrol substantiate sucli a 

 statement. 



Station 407 was taken 3 miles south of Cape Pine where the watei 

 was Salter than in Trepassy Bay and also considerably colder, the 

 temperatures being as low as those found at 405, 20 miles to the 

 eastward. This indicated the direction of flow around Cape Race 

 and to the westward at the time. 



PROFILE NO. 3— STATIONS 408-417 



Tins section was taken April il>-20, and ran from Cape Pine. 

 Newfoundland, southwestward, crossing Green Bank Avith its outer 

 end in the deep water of the Lau.rentian Channel. The number of 

 stations (eight), taken at intervals of 15 miles, furnishes an accurate 

 recf)rd of the water mass. 



Salinity. — The saltiest Avater on the shelf, greater than 35.15 ^/oo 

 covered the bottom of the " gulley " to a depth of 43 meters (26 

 fathoms). To the AvestAvard, on the Atlantic edge of the Newfound- 

 land shelf, water equally .salty presented a nearly vertical front from 

 surface to bottom, facing Cape Race. Still farther offshore at the 

 outer station, 417, the Avater Avas the saltest of the section, >33.42'7oo. 

 A suiface layer of Avater < 33.00 V,,,,. Avith an average thickness of 

 65 meters (35 fathoms), extended 04 miles offshore. Near the Ncav- 

 foimdhind coast where the Avater had been diluted through hind 

 drainage, its salinity Avas <32.45 " '„„. 



Tcn)j)er((ture. — Water colder than O"" lay as a bottom cover 50 

 metei-s (27 fathoms) in thickness from Cape Race to the continental 

 vi\'/j\ its upi)cr wall conforming in general to the bottom configura- 

 ti<ui. Water coi.lci- than 2 lay olTshore im the steep part of the con- 

 tinental slope. Its foiiii. a nearlv xcrtical face, extended ivom sur- 



