844 SEC. 16. GEOLOGY AND MINING. 



tion with the Greenwich Bail way. Gibbs' line, from Western Road, Brighton, 

 to junction with the Croydon Hail way. Stephenson's line, from North Lane, 

 Brighton, to Nine Elms. Line without a tunnel, from Brighton to Kenningtoii 

 Oval. 



3289. Sections showing the positions of the Palaeozoic 



Hocks beneath the Tertiary or Secondary Strata, with some 

 specimens of the former. Prof. Prestwich, Oxford. 



1. Section of the Kentish Town Well, London. 



2. Specimens of some of the strata passed through in the above well. 



3. Section of the Artesian Well boring at Ostend. 



3290. Geological Section from Paris to Brest. 



JDelesse, Paris. 



This outline section has been executed, under the direction of M. Mille, 

 Chief Engineer, Fonts et Chaussees by Messrs. Triger, Delesse, and Guillier. 

 It is on a scale of 1 : 40,009 horizontal, and 1 : 2,000 vertical. It follows the 

 line of the railway which, leaving Paris, passes by Bonneval, Chateaudun, 

 Vendome, Tours, Angers, Nantes, Vannes, and Quimper, and comes out at 

 Brest. Many classic regions are traversed in this line, as the Paris basin, 

 Beauce, Touraine, the Valley of the Loire, and a part of Brittany, 



On this section can be followed the succession of the different geological 

 strata, which are marked the whole length of the railway ; their position is 

 determined by their height above the level of the sea, so that, notwithstanding 

 the exaggeration of the scale of elevation, it is easy to ascertain their relative 

 position. 



In the regions of La Beauce the subterranean sources of water supply have 

 been specially studied. 



This section also affords information as to the materials of construction 

 furnished by each geological stratum, and the vegetable soil and the nature 

 of the crops. 



Geological studies of this kind are eminently useful if they precede the for- 

 mation of railways, because they supply a knowledge of the difficulties likely 

 to be encountered during the course of construction, as well as the resources 

 which may be reckoned on in each region traversed ; and even when made 

 after the completion of a railway, they supply facts highly useful to science 

 and industry. 



In pursuance of the orders of M. de Franqueville, Director-General, Ponts 

 et Chaussees, these geological surveys have been carried on by M. Mille 

 over a great part of France. 



3291. Original Sketches, illustrative of Geological 



Scenery and sections, taken by Dr. Buckland between 1815 and 

 1840. The Oxford University Museum, Geological Section. 



1. Landslip, Lyme Regis. 



2. View of Coast near Lyme Regis. 



3. View of Coast near Sidmouth. 



4. View of Coast near Sidmouth. 



5. Submarine Forest of Stolford near Bridgewater. 



6. View of Coast between Charmouth and Abbotsbury. 



7. Bird's eye view of Dartmoor and south coast of Devon. 



8. View of Vale of Severn between Malverns and the Cotswolds. 



9. Coast view between Beerhead and Axmouth. 



