1266 Wisconsin Academy of Sciences , Arts, and Letters. 
; 
depth of 5 meters. The fauna and flora are rich and varied and 
insure an abundance of material for the investigations which 
have been undertaken. 
Germany. 
The German government established a biological station on 
Helgoland soon after this island was acquired from Great 
Britian in 1890. The island is situated about 50 kilometers 
out from the mainland, directly off the mouths of the Elbe and 
Weser rivers. Thus very diverse and interesting biological 
conditions are found between the island and the mouths of these 
rivers. Tidal currents are very strong around the island also 
and much interesting pelagic material is brought to this region 
by them. Much good shore collecting is found along some por¬ 
tions of the island, too. 
The station buildings at present consist of a large and sub¬ 
stantial brick structure erected in 1904, and four dwelling 
houses which have been converted into laboratories. The ground 
floor of the brick building is occupied by a large public aquarium 
and above this are some laboratory rooms. The dwelling houses 
will soon be replaced by a large, modern station building, as 
a sum of money has recently been appropriated for this purpose 
by the German government. The library contains an unusually 
good collection of literature on both marine and fresh-water 
biology. 
The local museum which is a dependency of the station, con¬ 
tains an excellent collection of birds which have all been cap¬ 
tured on the island, as well as a good collection of local fishes 
and invertebrates. 
The station is taking a very prominent part in the Uorth 
sea investigations, Dr. F. Heincke, its director, and Dr. Ehren- v 
baum having charge of some of the most important fields of this 
work. 
While there is no regular biological station at Kiel, the Uni¬ 
versity, which is located directly on the shore of the Baltic, and 
the laboratory of the investigators taking part in the interna¬ 
tional studies on the Uorth Sea may be regarded as marine sta¬ 
tions. At the university one finds Dr. Hansen, the father of mod- 
