68 INTERNATIONAL ICE OBSERVATION AND ICE PATROL SERVICE. 



rarely more than a few days for each occasion that radial was covered. 

 In other words, not only was the number of stations greater than for 

 any preceding year, but the material was collected in such a way as 

 to give it more significance than it would derive merely from its mass. 



The material furnishes profile views (see profiles 1-14) of the 

 currents, eddies, and tidal water of the Grand Banks region, and of 

 the plankton. An enumcFation of the lines of these profiles follows: 

 The radial east from the banks was covered early in May and again 

 late that month; the radial south from the banks during the first 

 half of April, May, and June; the southwest radial during the second 

 half of April, May, and June; the westerly radial, extending more 

 than halfway to Halifax from the banks, during the second half of 

 February and March, and again the middle of May; also a west-east 

 line from the banks across the Labrador Current in February; a north- 

 south line across the end of the Labrador Current late in March; and 

 profiles from Halifax out to deep water during the middle of May and 

 the middle of June. 



The material obtained along the last-mentioned line is not very 

 satisfactory. Since the cruising area of the vessels did not extend 

 so far west while on active patrol, neither the oceanographer nor the 

 scientific observer was present at the working of these stations. 

 Because the information to be obtained seemed eminently desirable, 

 a substitute was pressed into service to conduct the work. Although 

 he seemed qualified for it, as a result of instruction and practice, too 

 many of the temperature data were fantastically impossible. The 

 value of the water sample and plankton collections is thereby lessened, 

 yet certainly not nullified. 



The northerly radial over the Grand Banks was not covered, despite 

 the desirability of an increase in knowledge of the conditions there, 

 particularly in the gutterlike formation off Cape Race. Several plans 

 lor fitting such a run to the northward into the schedule were formu- 

 lated, but each had to be abandoned as the immediate necessity of 

 patrolling southward intervened, until the ice menace ceased to exist. 



As the oceanographer is giving thorough consideration to the 

 oceanographic data, comments on that subject are out of place here. 

 With regard to the biological collections, the examination which has 

 so far been made of the plankton is not sufficient to warrant any dis- 

 cussion of the results. But the study undertaken for the coming few 

 months should be productive of some conclusions. It is expected 

 that some correlation of the life and distribution of at least certain 

 species with the oceanography of the region of the Grand Banks and, 

 it is hoped, with the movements of the icebergs will be indicated. 



The complete station data are presented in the table which follows 

 this report. In the table are included the corrected temperature 

 observations, the salinity values obtained by the titration of the 

 water samples, and the record of the towings made at each station. 

 The numbers of the stations commence with 1B7 to follow those of 

 the International Ice Patrol for previous years. 



In addition to the oceanographic and liiological data the correla- 

 tive records of the time and position of each station, the depth, and 

 the weather are given. The local depths of water are quoted between 

 parentheses when they were read od' the chart and not found by 

 sounding. TheBeaufortscaleisused in indicating the force of the wind. 



The depths quoted for the physical data are the lengths of line paid 

 out in lowering the Greene-Bigelow reversing water bottles. The 



