MÉMOIRES DE LA SOCIÉTÉ ((ÁLZATE.» TOME 31 



THE ASCENT OP IZl'ACCIHUATL FROM THE SOCTH 



B^íüT ÜR. TV. FREUOKNJBERGr 



After having made the ascent of Popocatepetl during the Christmas 

 Holidays 1906 and 1907 with a parly led by Gaptaiu Holt, on the 

 30th. of December I undertook an excursión from Popocatepetl to Iz- 

 taccihuatl for the purpose of studying the formation of the latter moun- 

 tain and of determining the extent of its glaciers in former and in 

 modern times. 



I left Tlamacas in company with two guides for Paraje, which lies 

 by the Puebla road about two hours beneath the Volcano de Goitez on 

 the saddie. The pass between the two mountains has the forra of a 

 platean with a soft surface crust of ashes. At the western edge of this 

 plateau is located the above mentioned Paraje, a small ranch, or rather 

 á resting place for pilgrinis in their journey from Puebla to Ameca- 

 meca. 



I acompanied Captain Holt's return party down to this place after 

 which I proceeded on foot along the edge of the plateau towards Iztacci- 

 huatl with my guides. As we arrived late we were obliged to spend 

 the first night under the rocks of the snowless Cerro Gordo on the 

 western side of a little valley, at the end of which rises the Río Ga- 

 llinas which flows to the south over iiuge rocks, worn sniooth by for- 

 mer ice streams. 



From this higli valley which is entirely free from snow and ice, be- 

 ing towards the south, ice streams have plunged down into the sad- 

 die towards Tlamacas. This is also proved by the polished and striat- 

 ed rocks on the right hand side of the Rio Gallinas and by its U shaped 



