160 General Notes. 
measurement found to be 1,345 feet high instead of 2,000, as 
formerly supposed. The other hills reach 600 to 700 feet. There 
is very little fresh water. 
The Danish Government has decided to despatch an expedition 
to Iceland this coming summer, to effect hydrographical measure- 
ments. Great fiords and waterways still remain unmeasure 
The “Statistique de la Superficie et de la Population des 
Contrees de la Terre,’ by M.E. Lavasseur, gives the following 
table of areas and populations for 1886 :— 
POPULATION. 
Area millionof Density of sq. 
sq. kilometres. In millions. kilometre. Ratio to total, 
Hhurope -i -sciis 10.0 347 34 23.4 
PRE O canes 31.4 197 6 13.3 
sia - 43.0 789 19 58.1 
a O Biss 11.0 38 3.5 2.6 
North America....... 23.4 80 3.4 5.4 
South America includ- 
ing Australasia..... 18.3 32 Er 2.1 
` 136,1 1,483 10.9 100 
Nearly two-thirds of mankind are concentrated in about eleven 
millions of square kilometres, viz.: West Central and South 
Europe Cr millions of inhabitants, 3.5 millions of kilometres); 
the Anglo-Indian Empire (254 and 3.6); and China, Manchuria 
and Japan (430 and 4). 
Dr. Krause has etki at Accra on the Gold Coast absolutely 
without means, having been compelled to leave his collections and 
baggage behind through the opposition of the natives. 
M. J. Thulet, from observations taken on the Clorinde combined 
with those of Mr. Buchanan on the Challenger, has prepared a 
series of longitudinal and transverse sections of the Gulf Stream. 
It is like a river, and has a steeper slope towards the United States 
than towards the ocean. The great St. Lawrence current, coming 
from between Cape Breton Island and St. Paul, collides with the 
Gulf Stream, lessens its speed, and leaves as a sort of submarine 
delta the banks extending along the United States coast to the 
great bank of Newfoundland. The eastern polar current skirts 
Newfoundland, strikes the Gulf Stream at right angles, and since 
its waters are a little lighter than those of the Gulf Stream, mixes 
with them, and almost entirely arrests them. The cooled waters 
spread out in a general north-easterly direction, but there is no 
longer any definite current. 
