PAN DE AZUCAR 



an east and west axis, and belongs rather to that 

 particular series called, about Vifiales, the "Sierra 

 de Vifiales" and the "Infierno. " It is not there- 

 fore an integral part of the Costanera, or northern 

 range, which is in plain sight from the sea, al- 

 though it has every appearance of being a detached 

 extension of that northern system. Between the 

 western end of the Costanera and the eastern 

 end of Azucar (centered in a gap of five or six 

 miles between them) rises the conical Mogote 

 de Pan de Azucar. The land-shell affinities 

 of Azucar at once showed its connection with 

 the Vifiales range and not with the Costanera — 

 to which latter system belongs the large conical 

 mogote. It was partially to determine this fact 

 that we were here, and our eagerness to get started, 

 while we awaited our horses at the door of the inn 

 at El Punto, made each minute seem an hour. 

 We set forth at length with a definite plan of 

 attack that should enable us to accomplish the 

 most and cover the greatest possible area in the 

 one full day at our disposal. Simpson was to 

 begin collecting immediately in front and work 

 west — to the end if possible; Clapp and I were 

 to take the eastern end and work back, while Dr. 



