76 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
and flounders) at Piel, which resulted in over thirteen 
millions of young fish being set free in the Lancashire 
waters. The time of spawning of these fish at Piel seems 
to be distinctly later than at Port Erin, where the first 
fertilised eggs of the plaice appeared, in the pond, in 
1910 on March 14th, and in 1911 on February 18th, in 
each case some weeks earlier than at Piel. Both at Piel 
and at Port Erin, although the season in 1910 was late 
in beginning, the total numbers obtained were good. 
Mr. Scott gives the details for the Piel Hatchery, and 
it may interest the Committee to know that at Port Hrin 
eleven and a half millions of plaice eggs were collected 
for incubation, and that over eight millions of young 
fish were distributed in the sea. 
Mr. Scott also gives particulars of the practical 
classes in Marine Biology for fishermen, and in Nature 
Study for school teachers, held in the Piel Laboratory 
by Mr. Johnstone and himself during spring and early 
summer. <A new edition of the illustrated syllabus of 
the course arranged for the fishermen’s classes has been 
prepared during the past year, and is now in use. 
We are again indebted to Dr. Bassett (of the 
Chemical Department of the University of Liverpool) 
for kindly undertaking the examination of the samples 
of sea-water obtained in our hydrographic cruises. 
Dr. Bassett’s report on the results obtained in 1910 will 
be found below. 
It is interesting to notice the successful prediction 
of the unusual weather of last summer made_ by 
Dr. Bassett in February (see our last Annual Report, 
p. 147). The prediction was based on the hydrographic 
observations showing the late appearance and reduced 
salinity of the Gulf Stream Drift early last year. This 
is an instance of the interest and value of these periodic 
observations as to the nature of the sea-water established 
