unclassified bergs were distributed throughout the entire search area 

 then approximately 1,408 bergs were small. While no similar deduc- 

 tion can be made about 1964, an approximation would show that 15 per- 

 cent were small compared to 60 percent in 1965. The comparison 

 between the 2 years in medium and large bergs shows the same trend of 

 appreciably smaller size in the berg distribution. 

 2. December 1965. 



The 1965 flight showed a berg crop of approximately the same num- 

 ber of bergs as the preceding year, or 406 to 422. However, the north- 

 ern portion of the flight covered only up to 70° N. and not to Cape 

 Christian. If it can be assumed that the observed berg distribution 

 holds true for that specific period, then approximately 50 additional 

 bergs would be distributed to Cape Christian. Distribution by size 

 could be made on the distribution observed in the northern portion of 

 the flight. Distribution by size of the unclassified bergs was made by 

 comparison to the size distribution of the bergs observed within the 

 areas described in the survey. With these assumptions a better com- 

 parison can be made with the December flights of 1964 and 1965 than 

 with those flown in October. This reveals the following : 



or that in 1964, out of a total of 452, bergs 49 percent were small and 

 that in 1965, out of a total of 456, bergs 73 percent were small. 



Some conclusions had Ijeen made in prior years on estimating the 

 forthcoming year's berg crop south of latitude 48° N. on the basis of 

 the distribution of bergs by numbers and size based on northern recon- 

 naissance of Baffin Bay in October and December. 



A comparison of 1964 and 1965, assuming; (1) that all bergs south 

 of Cape Chidley by early December cannot last to the Grand Banks 

 unless the pack ice drifts south with them; and, (2) all bergs north of 

 Devon Island have too far to travel to make the Grand Banks by July 

 shows the following existing berg distribution : 



30 



