58 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
to publish shortly a more detailed account of the 
occurrence of double rows of suckers on the arms of 
Hledone from Port Erin, together with an account of the 
spawning of Mledone that took place in the aquarium 
this summer. (See Memoirs Manchester Literary and 
Philosophical Society).” 
FurtHER Notes on WorK. 
Professor Benjamin Moore has continued his interest- 
ing observations on the reactions of minute swimming 
organisms to light and other forms of stimulation. These 
have led on to an investigation of the phenomena of 
phosphorescence, which Professor Moore has made the 
subject of his presidential address to the Biological 
Society, printed in this volume. One of the most 
interesting points he has determined is that a diurnal 
periodicity is present, the organisms becoming luminouss 
on stimulation at night, but refusing to do so durimg the 
day, even when kept in a dark room. 
Dr. H. E. Roaf continued his investigations on the 
digestive processes of lower marine animals. He prepared 
elycerine extracts from the digestive glands of various 
invertebrates; and then proceeded to test these extracts 
for digestive (hydrolytic) enzymes by investigating their 
action on various food stuffs. The digestion of carbo- 
hydrates and fats by these extracts was found to be almost 
universal. The digestion of proteins also occurred, but 
requires some further investigation. Rennin-like 
enzymes were found, and several of the extracts appeared 
to cause coagulation of mammalian blood-plasma. The 
full results of this research are being published in the 
‘“ Bio-Chemical Journal” for 1908. 
The investigation, by means of the dredge and the 
trawl, of the three fishing banks--the Ballaugh, the 
