ee 
uF 
7 Co TOCEPHALUS. —The columella auris in Clepsy 
pe, is bifurcate at the proximal extremity. The s 
1884.] Geology and Paleontology. 1253 
_ AMERICA.— The Work of the Greely Expedition—The geograph- 
ical work of the Lady Franklin Bay Expedition, according to the 
account given by Lieut. Greely at the British Association, covers 
nearly three degrees of latitude and over forty degrees of longitude. 
Lieut. Lockwood's journey to the north added nearly 100 miles of 
coast line beyond the farthest point seen by Lieut. Beaumont, of the 
Royal Navy. There were no indications that the most northern 
point of Greenland seen, 83° 35’ N. lat., 38° West long., was the 
northern termination of Greenland. The coast presented numerous 
fjords, with many outlying islands, and the interior, as seen from 
an elevation of 2000 feet, consisted of confused masses of etern- 
ally snow or ice-clad mountains, The coast-line was high and 
precipitous, the formation schistose slate with a little quartz. The 
arctic poppy and several saxifrages were seen, as were also traces 
of the polar bear, lemming and arctic fox, and a hare and a 
ptarmigan were killed. A snow bunting was heard. A curious 
fact was the existence of a “tidal crack” extending from Cape 
Bryant along the entire coast, stretching across the fjords in a 
direct line from headland to headland, and varying in width from 
one yard to several hundreds. Inside the crack was rough hum- 
GEOLOGY AND PALA/ONTOLOGY. 
IN CLEPSYDROPS 
drops leptocephalus 
horter expanded 
THE STRUCTURE OF THE COLUMELLA AURIS 
Abstract of paper read betore the National Academy of Sciences Oct. 16, 1334 
