V. MAPS, ETC. 667 



(9.) Comision del Mapa geologico. Secion geografica metero- 

 logica. Directed by the member and first class engineer, Dr. Jose 

 Subercase. 



(10.) Mapa geologico estratigrafico de las montanas de la pro- 

 vincia de Palencia, by Don Casiano de Prado, 1857. 



(11.) Sections of the N. and N.E. of the province of Madrid, 

 which include the Sierra of Truda, and cerros called de Concha 

 within the limits of La Puebla de la Muger muerta. 



3153c. Illustrations of the progress of Geology, Mining, 



and Metallurgy in Spain, selected from works published by the 

 contributor. Don B. Federico de Botella y de Homos, Madrid. 



(1.) t( Descripcion Geologica Minera de las Provincias de 

 Murcia y Albacete (antigno reino de Murcia)," by B. Federico 

 Botella y de Hornos, first class engineer of the National School of 

 Mines, 1 vol., grand folio, 22 plates, and numerous drawings in the 

 text. 



(2.) Geological and agronomical plan of Murcia and the sur- 

 rounding country, giving the system of irrigating canals employed 

 at the Huerta of Murcia. 



(3.) Sierra of Carthagena. Lead foundry. Spanish slag 

 hearths. Atmospheric furnaces. Blast furnaces. Cementing 

 furnaces. Compressed air furnaces used at the Escombrera 

 Works. 



(4.) Sierra of Carthagena. Desilverization. Condensing fur- 

 naces. Refining furnaces. Pattison's crystallizing boilers. Im- 

 plements and tools employed in working these boilers. 



(5.) Mazarron. General plan of alum works. Serrata of 

 Lorca. Advantages of sulphur. Furnaces of horizontal cylinders. 

 Furnaces of vertical cylinders. 



(6.) Sierra of Carthagena. Metallurgy. Moulds used for 

 mixing the bricks used at the furnace. Atmospherical furnaces. 

 Moulds employed for pressing the lead out of the furnace. Silver 

 in cupella. Blast furnaces, with ventilators and bellows. Moulds 

 for casting leaden bars. Boilers and other implements. 



(7.) Sierra of Carthagena. Mechanical preparations employed 

 at the works. Works at Escombreras. Round buddies worked 

 by steam. M. Victor Simon's classifier. Water clarifier. 



(8.) Topographical and geological plan of the Sierra of Car- 

 thagena. 



(9.) Sierra of Carthagena. Geological section from Cabera 

 Gordo to Cerro de Santo Espiritu. 



