Tsbr''] PROCEEDINGS OF THE NATIONAL MUSEUM. 357 



DISTANCES AND DEPTH OV WAIER BETWEEN THE ISLANDS. 



The approximate distances between some of the islands are as follows : 



Miles. 



Hood to Culpepper 270 



Chatham to Nurhoroiigh 163 



Hood to Chatham 31 



Hood to Charles 40 



Chatham to Iii(lefatij;able 41 



Albemarle to Abiugdoii 48 



Abiugdoii ti) Biiidloe 14 



Bindloe to Tower 31 



Abingdon to Weumau 88 



Weumau to Culpepper 22 



Duucan to Indefatigable 6 



Jervis to James 5 



Barrington to ludefatigable 11 



Indefatigable to James 12 



James to Albemarle 11 



Charles to Indefatigable 31 



"The deepest sounding- on record is (571 fathoms (4,02(5 feet) between 

 Tower and Indefatigable islands; between the Median islands the 

 gi'eatest depth does not surpass 300 fathoms, but a complete series of 

 soundings nniy show quite diflerent figures."* 



Since the above was written by Dr. Baur we have additional data 

 relating to the soundings iiiAgassiz'st paper, wherein he says: 



"Our knowledge of the hydrography of the Galapagos is still quite 

 incomplete. There are unfortunately no soundings between James and 

 Albemarle, to indicate the probable depth of the ridges connecting": 

 them. Nothing likewise is known of the deptli of the channels between 

 Abingdon and Bindloe and Tower, and no soundings exist to show how 

 far to the westward the deep valley (of over 800 fathoms) separating- 

 Bindloe from Indefatigable extends, as there are no soundings between 

 either Bindloe or Abingdon and Albemarle, There seems little doubt 

 that the northernmost islands, the isolated rocks of Culpepper and 

 Wenman, are themselves sei)arated by comparatively deep water, and 

 in turn separated from the northeastern group of islands, Abingdon, 

 Bindloe, and Tower, by a tongue of the ocean of at least 1,000 fathoms 

 in depth and from 60 to 70 miles in width. From a careful examina- 

 tion of the soundings thus far made it seems probable that the 100- 

 fathom line connects Indefatigable, Duncan, Barrington, and Charles, 

 and that there is also a connecting ridge inside that same depth be- 

 tween those islands and Albemarle to the southeast of Cape Woodford 

 on Albemarle, or a wider plateau of which Duncan Island is one of the 

 culminating summits. 



"A comparatively shallow connection may also exist between Cape 



* Baur's i>aper, Am. Nat., 1891. 



tA. Agassiz in Bull. Mus. Comp. Zoiil, Vol. .xxiii, No. 1. 



