SEA-FISITERIES LABORATORY. 
\ LUGE RAY. 
t 
ees 
gee ine, Pegs 
% me! 
An 
oe 
oa 
Desk Be 
Bs, 
ts tiiec Atel ag 
re a 
Pie 2e Fatale 
eae ee 
Course of Flood tide in Irish Sea round Isle of Man. 
Scale: 20 sea miles = 13 inches. 
