704 SEC. 16. GEOLOGY AND MINING. 



3268n. Geological Map of the western slope of the Ourals, 

 by M. Valerien de Moeller. Mining Institute of St. Petersburg. 



3268o. Geological Map of the Province of Kherson, by 

 M. Barbot de Marny. Mining Institute of St. Petersburg. 



3268p. Geological Map of the Province of Kiew, by M. 

 Theophilaktow, 1872. Mining Institute of St. Petersburg. 



3268q. Geological Map of the Town of Kiew, by M. Theo- 

 philaktow, 1874. Mining Institute of St. Petersburg. 



3268r. Geological Map of the Province of Twer, executed 

 by Messrs. Lahousen and Dittmar. 



Mining Institute of St. Petersburg. 



3268s. Geological Map of a part of the Province of Erivan, 

 published by the " Administration des Mines." 



Mining Institute of St. Petersburg. 



3268t. Geological Map of the Province of Elisavetpol, pub- 

 lished by the " Administration des Mines," 1869. 



Mining Institute of St. Petersburg. 



3268u. Geological Map of a part of the Province of Koutais, 

 published by the " Administration des Mines," 1874. 



Mining Institute of St. Petersburg. 



3268v. Geological Map of the Province of Nowgorod, by 

 M. Lahousen. Mining Institute of St. Petersburg. 



3269. Agricultural Map of Belgium. 



(a.) Geology and mining. Geological models, horizontal and 

 vertical sections. 



(b. and c.) This map shows, by means of colours and signs, the 

 mineral constitution of the soil of Belgium, based on the geological 

 data, and the different kinds of cultivation. The agricultural land 

 is divided into regions, and the latter into zones. 

 (d.) Height, 0'45 m ; width, 0'50 m . 



C. Malaise, Professor at the Government Agricultural In- 

 stitute at Gembloux (Province of JVamur, Belgium). 



30 7O. Illustrations of the Sub-Wealden Boring, at Ne 

 ther field, near Battle, Sussex. 



Contributed on behalf of the Sub-Wealden Exploration 

 Committee, by Henry 'Willett, F.G.S. and W. Topley. 

 F.G.S. 



The Sub-Wealden boring was commenced in 1872, with the 

 view of ascertaining the order and thickness of the secondary 

 rocks beneath the south-east of England, and of determining, if 

 possible, the depth and age of the Paleozoic rocks which are 



