98 n^e Aiaerlcan. Geologist. February, 1^93 
XII. — Suiftheru ^States. 
933 [541 a.] 
1835. — Conrad (T. A.). (Jeological map of Alabama. 
Accompanying: "Fossil shells of the Tertiary formations 
of North America," a'oI. t, No. 3. Title of No. 3: "Eocene 
fossils of Clairborne, with observations on this formation in 
the United States, and a Geological map of Alabama.'" 
Republished with plates (four plates), March 1,1835, Philadelphia. 
This map, like the first geological map of INIaclure, described under 
No. 25, is without the name of its author, and may be attributed to 
the draftsman, H. S. Tanner, the compiler and publisher of the geo- 
graphical map on which Conrad put his geological classification and 
colors. 
Less than half a dozen of No. 3 Conrad's "Fossil shells of the Ter- 
tiary, etc.," are in existence. Owing to a foot note at page 36, someone 
interested in the notes purchased the whole edition and suppressed 
it. Two reprints, one without the foot note and without the geologi- 
cal map, and a second one witii the foot note and the map, has the 
same fate. No copies iiave ever reached Europe. Sir Charles Lyell,, 
during his first journey in America, in 1842, received from Conrad a 
copy of his Geological map of Alabama. {Travels in. North America 
in the years I84I-42, vol. 11, p. 204, New York and London, 1845.) 
y.Yl\l.— Mexico. 
934 [801 a.] 
1803. — Humboldt (A. de) Esquisse geologique des environs de 
Guanajuato, fondee sur des mesures geodesiques et baro- 
metriques faites en aout et Septembre, 1803, Paris. 
935 [801 b.] 
1807. — Humboldt (A de) Carte geologique du Nevado de Auti- 
sana, esquisee sur les lieux, Paris. 
936 [801 c] 
1827. — Gerolt (F. de) and Berghes (C. de) Carta geognostica 
de los principales distritos minerales del Estado de Mexico, . 
formada sobre observaciones astronomicas, barometricas 3^ 
mineralogicas hechas por F. de Gerolt agenta y C. de 
Berghes. Mexico. 
937 [804 a.] 
1844. — Garay (Jose de) A Geological map, accompanying: "Re- 
conocimiento del istmo de Tehuantepec, practicado en los 
annos 1842 y 43 con el objeto de una communicacion 
Oceanica, por la comission cientifica que nombro al efecto el 
impressaria Don Jose de Gara3%'' London, 1844. 
