GEOLOGY OF PERU—ADAMS. 429 
1870.—Conrad, T. A. Description of new fossil shells from the Upper Amazon 
Tertiary. Amer. Journ. Conchology, Vol. VI, p. 192, 1870. 
1870.— Nelson, Edward T. On the molluscan fauna of the late Tertiary of 
Peru. (From Zorritos, presented to Yale College in 1867 by BH. P. Larkin and 
Prof. F. H. Bradley.) Trans. Conn. Acad. Sci., Vol. 2, p. 186, 1870. 
1873.—Raimondi, Antonio. El departamento de Ancachs y sus riquezas 
minerales. Lima, 1878. Parte segunda: Geologia. 
1874.—Conrad, T. A. Remarks on the Tertiary clays of the upper Amazon, 
with description of new shells. Proc. Acad. of Nat. Sci. Phila., Vol. XXVI, 
p. 25, 1874. : 
1876.—Agassiz, Alexander. Hydrographic sketch of Lake Titicaca. Proc. 
Amer. Acad. of Arts and Sci., 1876. New Series, Vol. III, p. 283. 
1876.—Derby, O. A., and Agassiz, Alexander. Notice of the Paleozoic 
fossils (from Lake Titicaca region), with notes by Alexander Agassiz. Bull. 
Mus. Comp. Zoology, Harvard College, 1876, Vol. III, No. 12, pp. 276-286. 
1876.—Agassiz, Alexander, and Pourtales, L. F. Recent corals from Tilibiche, 
Peru (now in Chile). Bull. Mus. Comp. Zool. Harvard College, Vol. III, p. 287, 
1876. 
1877.—Gabb, W. M. Description of a collection of fossils made by Dr. 
Antonio Raimondi, in Peru. Journ. Acad. Nat. Sci., Philadelphia, 1877, new 
series, Vol. VIII, Part III, p. 268. (Contains a synopsis of South American in- 
vertebrate paleontology and a bibliography of South American paleontology). 
1881.—Steinmann, Gustav. Uber Tithon und Kreide in den Peruanischen 
Anden. Neues Jahrbuch, 1881, p. 180. 
1883.—Pfiticker y Rico, L. Apuntes sobre el distrito mineral de Yauli. 
Anales de Const. Civiles y de Minas del Pert, Tomo ITI, 1883. 
1891.—Steinmann, G. “A sketch of the geology of South America.” Ameri- 
ean Naturalist, 1891, pp. 855-860. Read before the Geological Society of 
America Aug. 25, 1891. This sketch accompanies a map which forms a second 
edition of the Physical Atlas of Berghausen (Gotha Justus Perthes). Abstract 
and discussion, Bull. Geol. Soc. Amer., 1891, Vol. III, p. 13. Full paper in 
American Naturalist. 
1892.— Ulrich, Arnold. Palaeozoische Versteinerungen aus Bolivien. Beilage- 
band. Neues Jahrbuch, Vol. VII, p. 5, 1892. 
1892.—Wolf, Theodoro. Geografia y Geologia del Ecuador. Publicado por 
orden del Supremo Gobierno de la Reptblica (with 2 maps). Leipzig, 1892. 
1897.—Balta, José. Observaciones hechas en un viaje 4 Carabaya 1897. 
Bol. dela Soe. Geogr. de Lima, T. VII, Nos. 1-2-8, Vol. for 1897-8. 
1897.—Gerhardt, K. Beitrige zur Kentniss der Kreideformation in Venezuela 
und Peru. Neues Jahrbuch, Beilageband XI, 1897. 
1899.—Grzybowski, Josef. Die Tertiiirablagerungen des nérdlichen Peru und 
ihre Molluskenfauna. Neues Jahrbuch, Beilageband XII, 1899. 
1899.—Balta, José. Hl system carbonifero en el PerG con un mapa. La 
Revista Cientifica, Tomo II, Lima, 1899. 
1899.—Peruvian Meteorology, Solon I. Bailey and Edward C. Pickering. Cam- 
bridge, 1899. Annals of the Astronomical Observatory of Harvard College (at 
Arequipa, Peru), vol. 39, part 1. (See Chapter II on configuration and heights 
of the Andes, limits of perpetual snow, etc.) 
1900.—Fuchs, F. C. Nota sobre el terreno carbonifero de la peninsula de 
Paracas. Bol. de Minas, Tomo XVI, p. 50, Lima, 1900. 
1902.—Raimondi, Antonio. El Peri. Tomo IV. Estudios mineraldgicos y 
geolégicos (primera serie), (1902), edited by José Balta. 
