THE VOYAGE OF H.M.S, CHALLENGER. 
4i»G 
153e. Otoliths of Cod (Ross). 
Lime, . . . . . . . 53'08 
Carbonic acid, ...... 48'85 
Magnesia, ....... 2‘71 
Pliosplioric acid, ...... trace 
Alumina, . . . . . . . 0’22 
Silica, ........ 0'33 
100-19 
