HWW't 
r Jasrmr\ i on 3ieM J^oJjtrohsk Club. 
Quo f ; u J\j Q 'j) S ■ 
NijX . October |Q37" 
MEETINGS HELD IN THE PAST QUARTER. 
On August 12th, Dr. J. Pearson gave a most 
interesting illustrated lecture on "Deep Sea Pish". 
Representatives of the Boy Scouts, Girl Guides and’ 
the Hobart Walking Club attended as guests. After 
speaking of the Challenger Expedition of 1872 he 
went on to describe the depths of the seas, and stated 
that 58 p.c. of the ocean was between two to three 
miles deep. More life, he said, was found in the 
colder waters than in the warmer. He showed diagrams 
of deep sea fish with enormous heads and extremely ex¬ 
tended stomachs? many of. these abyssal animals are 
blind, and many are phosphorescent. In most parts 
of the world the bed of the ocean at depths from 400 
to 2,500 fathoms, is formed of a greyish mud called 
globig©rinfiL—oo®e consisting largely of Foraminifera 
shells, such as Globigerina, Orbulina etc. Below 
2,500 fathoms the sea-bottcm consisted of red clay, 
in which shells we re absent, having apparently been 
dissolved during their descent to this great depth. 
At one time investigators thought there could be 
little life in the deepest parts of the ocean on 
account of the tremendous pressure, which at a mile 
down amounts to about a ton to the square inch. 
Atmospheric pressure is a mere 14 lbs. to the square 
inch. 
