— 16 — 



Geology, palaeontology — Continued. 



Shumard, B. F. Descriptions of five new species of Gasteropoda 

 from the Coal measures, and a Brachiopod from the Potsdam 

 sandstone of Texas. 1:4 $2.00 



Descriptions of new Cretaceous fossils from Texas. 1 ;4 " 



Descriptions of new fossils from the Tertiary formation of 



Oregon and Washington territories and the Cretaceous of 

 Vancouver's Island, collected hy Dr. Jno. Evans, U. S. Ge- 

 ologist, uuder instructions from the Department of the In- 

 terior. 1 : 2* 



Descriptioms of New Palaeozoic fossils. 2:1 " 



Descriptions of new species of Blastoidea from the Palaeozoic 



rocks of the western States, with some observations on the 

 structure of the summit of the genus Pentremites. PI. IX. 

 1 :2* 



(Discovery in Texas of dicotyledonous leaves in the Cretaceous 



strata, and the existence of an extensive Miocene formation). 

 2:1 



(Fossils from the white limestone of the Guadalupe mountains, 



N. M.). 1:2* 



(Geological map of Texas). 2:1 " 



— — (Lower Silurian in Texas). 1:4 Ci 



Notice of fossils from the Permian strata of Texas and New 



Mexico, obtained by the United States expedition under Capt. 

 John Pope for boring Artesian wells along the 32d Paral., 

 with descriptions of new species from these strata and the 

 Coal measures of that region. PI. XI. 1:3 " 



Notice of new fossils from the Permian strata of New Mexico 



and Texas, collected by Dr. George G. Shumard, Geologist of 

 the United States Government expedition for obtaining water 

 by means of Artesian wells along the 32d Parallel, under the 

 direction of Capt. John Pope, U. S. Corps Top. Eng. 1 : 2* 



Notice of some new and imperfectly known fossils from the 



Primordial zone (Potsdam sandstone and Calciferous sand 

 group of Wisconsin and Missouri). 2:1 " 



Observations on the geology of the County of Ste. Genevieve, 



being an extract from a report made to the Missouri Geolog- 

 ical Survey, in 1859. 1:3 " 



Observations upon the Cretaceous strata of Texas. 1:4 " 



(Tertiary in Texas). 1:4 " 



■ (Vertical section of the Silurian strata of Cape Girardeau county, 



Mo.). 2:1 " 



See Evans. 



and G. C. Swallow. Descriptions of new fossils from the Coal 



measures of Missouri and Kansas. 1:2* 



Shumard, G. G. (Coal measures). 1 : 2* 



Geological structure of the "Jornada del Muerto ", New 



Mexico. 1:3 " 



* Exhausted. 



