286 BIBLIOGRAPHY 



(London, 1902, 4 vols. and 2 vols. as appendices) is, on the 

 whole, less valuable. 



Of later travellers we must mention P. D. Quensel, " On 

 the influence of the Ice Age on the continental watershed 

 of Patagonia " (Bull. Geol. Inst. Univ. Upsala, ix, 1908-9, 

 pp. 60-92), and " Geologisch-petrographische studien in der 

 Patagonischen Cordillera " (ibid., xi, 1912, pp. 1-114). 



Very important surveys in the Cordillera and on the 

 plateau of the Rio Negro were made under the direction 

 of Bailey Willis (Northern Patagonia, Ministry of Public 

 Works, Bureau of Railways, Argentine Republic ; text and 

 maps by the Comision de Estudios hidrologicos, Bailey 

 Willis Director, 1911-1914, New York, 1914, i vol and atlas). 



On the Patagonian forest (Argentine slope from 40 S. lat. 

 to Cape Horn) see Max Rothkugel, Los Basques Patagonicos 

 (Minist. Agric., Direction Gen. Agric. y Defensa Agricola : 

 Officina de Bosques y Yerbales, Buenos Aires, 1916). 



9. THE PAMPEAN REGION. 



The occupation of the western part of the Pampa between 

 1875 and 1880 led to a fairly large amount of research. The 

 most important work is the Informe ofaial de la Comisidn 

 cientifica agregada al Estado Mayor General de la Expedition 

 al Rio Negro, vol. iii, Geologia, by Dr. Ad. Doering (Buenos 

 Aires, 1882). We must also notice G. Ave-Lallemant, 

 " Excursion al Territorio indio del Sud " (Bol. Inst. Geogr. 

 Argent., ii, 1881, pp. 41-49) ; D. Dupont, " Notas geograficas 

 sobre el pai's de los Ranqueles (Bol. Inst. Geog. Argent., 

 1790, pp. 47-56) ; and Est. Zeballos, Description amena de 

 la Republica Argentina, vol. i, Viaje al pai's de las Araucanos 

 (Buenos Aires, 1881). 



Of general works on the Pampa and the Pampean deposits : 



Fl. Ameghino, La formacidn Pampeana (Paris and Buenos 

 Aires, 1881), and " Las formaciones sedimentarias de la 

 region litoral de Mar del Plata y Chapalmalan " (An. Mus. 

 Nac. Buenos Aires, series ii, vol. x, 1908, pp. 348-428). 



G. Bodenbender, " La cuenca del valle del rio Primero 

 en Cordoba : Description geologica del valle del rio Primero 

 desde la Sierra de Cordoba hasta la Mar Chiquita " (Bol. 



