TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
288 
If we compare the above record with that for 1907 
we find that during the first four months in the present 
year numbers are generally lower, with a maximum at 
about 3,000 only, as against 8,000 on April 19th, 1907. 
On the other hand, from the middle of May to the middle 
of July, the period in which the highest catches (up to 
157,500 on July 2nd) were made in 1908, the numbers in 
In August and 
ranged from 
1907 
September again the catches were rather higher in 1907 
(i el i a af 
BRC ae Reet PREP se - 
Seages foatesaeessanttantt 
CO OEE eee 
SEEeeUUERCCOGEEES. 
Gabe Pe, a A 
Bea 
Beam 
SSeEr 42068 
syiten aseetel ies = 
BREE EE Be teats 
REECE CEE CEES 
EEE CEE EE ESR 
BERBER SbL Boe bas 
EE SA Snoeeeehas 
ERRRERRRE ARBOR Awer 
Ree? 
Dec. 
Nov. 
Oct. 
Sept. 
Aug. 
May June July 
Apr. 
Mar. 
Feb. 
Jan. 
1a: 
res 
No Dinoflagellates were cau 
than in 1908. 
ght (four hauls 
only) in October, 1907, while in 1908 (many more hauls) 
Xs 
The numbers for November 
they ranged up to 5,100. 
and December were slightly lower this year than last. 
The above comparison and an inspection of the super- 
imposed curves for the two years (fig. 11) shows at once 
that the chief differences are due mainly to the maxima 
summer elevation 
)0O8—the great early 
c 
. 
being later in 1 
