84 
had taken up. The greater immher who have used the 
tables here have followed up the embryology of some group 
or species, but others have worked at the anatomy either of 
an organ or, on the other hand, of a class or species. I found 
that it presented great advantage for studying systematically 
a group, and in the six weeks during which the British 
Association granted me their table, I have been able to 
make a large collection of Bryozoa, the determination oi 
which I have not been able to complete, as I cannot obtain 
some of the most important literature on the subject here ; 
but I may say that I have over one hundred species and 
expect to find it not under one hundred and fifty, and 
probably it will be the largest number obtained from any 
one locality. These I have collected for the purpose of com- 
parison with my collection of Bryozoa from various periods 
of the tertian formation. 
For the study of embryology it is necessary that a very 
large number of animals should be collected, and that often 
continuously for a long time ; and this is a difficult and ex- 
pensive thing for a naturalist, especially in a foreign town, 
but as the station has two fishermen, with a very large 
knowledge of the animals, who are out every day with in- 
structions to bring such animals as are wanted at the time, 
and as the fishermen in the whole neighbourhood are 
o 
encouraged to bring anything rare or that is wanted at the 
time, it will be clear that for such studies or other anatomi- 
cal work the advantages are very great, and I have found 
the same advantage of having the opportunity of constantly 
overhauling a considerable amount of material for the 
systematic study of any group of smaller animals. Each 
worker has a good-sized tank and two smaller ones for 
keeping anything he requires alive. Besides having the 
animals or plants collected which each is studying, he has 
on the working table all the reagents which are ordinarily 
required, besides glass vessels, drawing materials, and cer- 
