192 



DAHLGREN, THE DISCOVERY OF THE HAWAIIAN ISLANDS. 



Delisle 



Cabrera Bueno 



Anson 



La Pérouse 



Stockholm chart 



Islands in 30°— 33° N. lat. 



(Ponafidin and LoVs Wife) 



I. S. Thomas S. Mateo 

 I. S. Roch A reef 



Todos los Santos 



Vela 



Veela 



S. Thomas 

 S. Thomas 



S. Thomas 



S. Matheo 

 S. Matheo 



Montagne avec 2 Pics 



Baxo 



Pena de dos Picos 



Bayro 



Penia de los Picos 



S. Thomas | S. Mattheo Baxo 



Peha de Picos 



S. Matheo bolcan 



Pena con 2 Picos 



Islands in 3é°— 36° N. lat, 



(Shitchito Islands) 



Delisle 



Cabrera Bueno 



Anson 



La Pérouse 



Stockholm chart 



I. de Barnevelt 

 I. du Prince 

 Rodenholmo 

 Ongelukik 

 I. du Sucl 



2 islands 



Ynugusima 

 Tay 



Ynoguisino 



Say 



Isles découvertes en 1688 

 Isles découvertes en 1664 

 les Maries 



Islas del Ano de 1688 

 Islas de Santa Thecla 

 Bolcan 



Islas Nueva del Ano de 1716 

 Islas de Ano de 1664 

 Vulcano 



Volcan 



I. de 1688 

 I. de S. Tecla 

 bolcan 



From these tables it appears that the same island or group of islands in each of the 

 different charts occurs — most frequently under different names — as many as two to 

 four times; and the reason for this is evidently the inability of the Spanish pilots, espe- 

 cially in earlier times, to determine, even approximately, geographical longitude. The 

 islands which were from time to time encountered during the voyages of the galleons were 

 not identified with those that were marked on the charts; but new outlines wereinserted 

 and new names affixed in places that were determined on the basis of erroneous distance- 

 reckoning. And proceedings of this kind give us no right to express any condemnation 

 of the old cartographers. It cannot be doubted that several of them suspected the actual 

 state of things, but they entirely lacked the means to ascertain this, which could only be 



