DEPTHS OF THE OCEAN 



Hooker on 



Antarctic 



diatoms. 



subsequently lost to science. In April 1840 the dredge came 

 up full of coral from a depth of 95 fathoms, and in the following 

 January dredgings in 270 and 300 fathoms gave abundance of 

 marine invertebrates in great variety, the deepest dredging in 

 400 fathoms in August 1841 bringing up some beautiful speci- 

 mens of coral, corallines, flustrae, and a few crustaceous animals. 

 Hooker made known some of Ross's results, and drew attention 

 to the great role played by diatoms in the seas of the far south. 



Edward 

 Forbes. 



Audouin and 

 INIilne- 

 Ed wards. 



Michael Sars. 



.Sir James Clark Ross. 



In 1839 the British Association appointed a Committee to 

 investigate the marine zoology of Great Britain by means of 

 the dredge, the ruling spirit of this Committee being Edward 

 Forbes, who made many observations on the bathymetrical 

 distribution of life in various seas. Before this time, it is true, 

 Audouin and Milne-Edwards in 1830, and Michael Sars in 

 1835, had published the results of dredgings in comparatively 

 shallow waters within limited areas along the coasts of Europe. 



In 1840-41 Forbes studied the fauna of the yEgean Sea, 



