6 Proceedings. 
400 fathoms to any marked extent, and, in consequence, plant- 
life is absent. Lastly, the character of the sea-bottom also 
affects animal life. 
(2) The colour of deep-sea animals is generally uniform, 
blue and green colours being almost absent, and red the pre- 
valent tone. In addition to this character the eye is either 
very large or very small and almost functionless. Many animals 
have phosphorescent organs, developed either as ocelli down 
the body or as glandular organs on the head. The bones and 
shells of deep-sea forms are conspicuous for their lack of car- 
bonate of lime. Deep-sea animals probably derive their food 
from the surface. 
(3) This section of the lecture discussed the special characters 
of deep-sea fish and other forms. The large size of the jaws 
and head of certain eels was called attention to, and the 
relation between deep-sea and fossil echinoderms discussed. 
Shrimps, sea-spiders, crustacea, and the remarkable forms 
Cephalodiscus and Rhabdopleura were briefly described. 
(4) The various suggestions as to the origin of the deep-sea 
fauna were considered. Agassiz believed that the deep-sea 
forms had been specially created. Wyville Thomson had 
suggested a more or less ancient population of the deep sea. 
The most satisfactory answer to the question seemed to be that 
of migration, possibly when the cooling of the poles in Mesozoic 
times compelled the animals of the Arctic seas to migrate. As 
soon as cold water carried oxygen down to the depths, a deep- 
sea fauna became possible. However, the question must at 
present remain wrapped in great obscurity. 
Meerrne, held at Redhill, 21st of February, 1896. 
Dr. Bossey exhibited some flints obtained from the exca- 
vations for the Fort on Reigate Hill. Some of them were 
pear-shaped, others more elongated. Their cores were filled in 
