Juday—Some European Biological Stations. 1261 
of aquatic plants. There is scarcely any open water except the 
channels which are kept free for navigation. The shores of the 
Broad are ill defined, consisting of low, level marshes, large 
areas of which are submerged by a very slight rise of the water. 
The greatest depth of water does not exceed two meters. Al¬ 
though forty kilometers from the sea, high tides sometimes affect 
the level of water in Sutton Broad and during these times there 
is an appreciable rise in salinity. There are five other river 
valleys with their Broads all within easy reach of the laboratory. 
Mr. Robert Gurney is director of the Station and the work at 
present is directed toward acquiring a general knowledge of the 
fauna and flora of the region as a preliminary for more detailed 
investigations into bionomical problems. So far a fairly com¬ 
plete knowledge of the Crustacea, Coleoptera, and Odonata has 
been obtained and, to a less extent, of the Rotifera and Hydra- 
chnida. Chemical analyses have been made also to determine 
the effect of the tides. No charge is made for the use of the 
laboratory. 
Scotland. 
The Millport Laboratory was established by the Marine Bio¬ 
logical Association of the West of Scotland. It is situated on 
the Isle of Cumbrae in the midst of the extremely rich and 
varied fauna of the Firth of Clyde, and is within easy reach of 
Glasgow. The building consists of a main portion and a wing, 
each two stories in height. On the ground floor of the former, 
there are several research rooms and above them are the Robert¬ 
son Museum and the library. The museum contains the inter¬ 
esting and valuable Robertson collection of Ostracoda. The 
public aquarium occupies the ground floor of the wing and above 
this is a large, well lighted general laboratory. The station is 
well equipped with compound and dissecting microscopes, micro¬ 
tomes, and apparatus for physiological work. It also possesses 
a small collecting steamer. 
During the summer, courses in biology are given which are 
adapted to the needs of both teachers and students. Along 
research lines it is the aim of the laboratory to make a detailed 
physical, chemical, and biological survey of the Clyde Sea Area. 
