60' S9' S8" Sr S6" 55" 54' 53' 



Figure 7. — Ice conditions — Grand Banks on 9 April 1965. 



50' 49" 48' 4r 



45' 44' 43' 



60' 59' 58' Sr 56" SS' S4' SV 5!" 51' SCT 49" 4B" 47* 46" 



Figure 8. — Ice conditions — Grand Banks on 21 April 1065. 



16 



