MARINE BIOLOGICAL STATION AT PORT ERIN. 5Y 
Train and the Wart—lyine in the Coralline zone to the 
west of the Isle of Man, has not made much further 
progress during the past year. A few additional hauls 
have been made on each bank, but the unsettled weather 
during this summer has been very unfavourable for such 
work. The lists are not yet sufficiently complete to form 
the basis of any comparison; but the work will be 
continued as opportunity offers, and I hope to return to 
the subject in a future report. 
During August, Mr. Harold Drew, of Christ’s 
College, Cambridge, now Lecturer on Biology at the 
Plymouth Technical School, acted as my Sea-Fisheries 
Assistant on board the yacht, and gave most efficient help 
in gathering, preserving and measuring the plankton 
samples, and in taking sea-temperatures and other obser- 
vations. On several occasions we took serial temperatures 
with the Negretti and Zambra reversing thermometer, 
and samples of the sea-water with the Mill water-bottle, 
at a couple of pots (Stations A and B) in mid-channel, 
down to depths of 60 and 70 fathoms. These and the 
other water samples have since been analysed by Mr. 
Drew at Plymouth, and in returning me the figures for 
the salinities, &c., he remarks as follows :— 
“You will notice that there appears to be a complete 
reversal of conditions between August 24th and September 
12th. On August 24th, the water of lowest salinity is at 
62 fathoms, and the water of highest salinity at 20 
fathoms, and from 20 fathoms to the surface there is a 
sheht decrease, but the general condition may be taken 
as high salinity above and low salinity below. 
“On September 12th, the water of highest salinity 
is below and of low salinity above. ‘There appears to have 
been an inflow of cold, high salinity water along the 
bottom. The difference between temperatures of the 
