A GREENLAND TULIP-TREE o91 
two natives on board assured us that bad weather 
was imminent and very reluctantly we left with 
our work half done. Shortage of petrol rendered 
our return impossible. In the face of a cliff rather 
more than 100 ft. above sea-level, there is a 
dark band of shale (an old mud rich in the 
products of decay of Cretaceous plants), which 
contains impressions of the large fronds of a Cycad, 
many twigs of Conifers allied to species that are 
now confined to much warmer climates, and a 
considerable variety of broad-leaved trees. One 
of the most interesting of the broad-leaved forms 
was identified several years ago as a species of 
Liriodendron, a genus now represented by the 
Tulip-tree, a native of North America and China, 
which is often seen in cultivation in English gar- 
dens. In addition to the bed containing leaves of a 
Tulip-tree there are several other exposures of rocks 
at Atanikerdluk from which many specimens of 
Cretaceous and Tertiary plants have been obtained, 
but our unexpectedly sudden departure made it im- 
possible for us to secure a representative collection. 
At some localities the number and quality of the 
specimens of fossil plants collected exceeded 
expectation, while at others the results were 
disappointing. At Atanikerdluk, owing to circum- 
stances beyond our control, one felt that the best 
material was being left in the rocks: 
The worst we stored with utter toil1, 
The best we left behind! 
1 Jt is only fair to add that my companion bore most of the 
toil of packing, and with good results. 
