146 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
REPORT ON THE HYDROGRAPHIC WORK IN 
THE IRISH SEA DURING 1908. 
By Henry Bassett, Jun., D.Sc., Ph.D, Assistang 
Lecturer in Chemistry in the University of Liverpool. 
The hydrographic work begun in 1906* has been 
continued along similar lines during the last year. 
Samples were collected during February, May, July 
and October from the ten stations situated on the line 
running from Piel Gas Buoy to Calf of Man to Holyhead, 
and thence across Carnarvon and Cardigan Bays. The 
positions of the stations are shown on the chart on p. 168. 
In June a special trip was made to study the deep water 
to the West of the Isle of Man and off the Mull of 
Galloway. As on previous occasions, the water samples 
have been collected by my colleague Mr. James 
Johnstone, only the analyses being carried out by myself. 
The equipment of the steamer ‘‘ James Fletcher,’ from 
which the observations were made, is described by 
Captain Wignall in a separate paper. 
Full details of the various observations are given in 
the following tables. The first column gives the depth 
in metres; T° is the temperature (Centigrade) of the water 
in situ; Cl°/,, is the amount of chlorine per 1000 parts 
of water as found by the titration; S °/,. is the salinity; 
and & = ato gives the density of the sample of water at 
the temperature ‘l°. The position of the station and the 
date on which the samples were collected are given above 
each table. 
The present Report concludes with a discussion of 
several general conclusions which can be drawn from the 
*See Trans. Biological Society of Liverpool. Vol. XXII, 1908, 
pp. 54-79. 
