THE VOYAGE OF H.M.S. CHALLENGER. 



Vertical Range of Distribution 



141 



42 

 43 

 44 

 45 

 46 

 47 

 48 

 49 

 50 

 51 

 62 

 53 

 54 



55 

 56 

 57 

 58 

 59 

 60 

 61 

 62 

 63 

 64 

 65 

 66 

 67 

 68 

 69 



