36 



MARIOX EXPEDITION TO DAVIS STRAIT AXD BAFFIlSr BAY 



40 Zo 



The Varying Bounds of pack Ice 



1 Figure 10. — The animal maximum, minimum, anii mean limits to wiiidi pack ici> in sul 

 stanrial vdliimc lias been rcc-nrdcti over a iieriixl of .voars. The data tor tlic i)a<k i<' 

 the east (ireenland tuireiit lias been taken from a ITi-yeai' record of the Danish Met' 

 orolosieal Institute. The data for the ice in the Labrador curicnt comes from tl 

 international ice jiatrol and other sonrces. 



