696 SEC. 16. GEOLOGY AND MINING. 



b. MAPS, DIAGRAMS, &c. 



COLLECTION OF MAPS AND SECTIONS LENT BY 

 THE GEOLOGICAL SURVEY OF THE UNITED 

 KINGDOM OF GREAT BRITAIN AND IRELAND. 



3253a. Geological Map of the Keswick District, on the 



scale of six inches to the mile, with appended one-inch maps, 

 sections, &c. J. Clifton Ward. 



With this are exhibited three one-inch maps of the same district, one of 

 which serves as a coloured index sheet to the large map, and shows the varied 

 dips of the strata, while the other two serve as cleavage and glacial maps. 

 Also a horizontal section at the foot of the large map on the six inch scale, 

 ten horizontal sections on the one-inch scale, a section through the plumbago 

 mine in Borrowdale, and twenty-four chromo-lithographic figures of the 

 microscopic structure of rocks of the district. 



3253b. One-inch quarter-sheet, 101 S.E. of the Ord- 

 nance Survey (Keswick District), converted into a Geo- 

 logical Model by Mr. Jordan, showing the various geological 

 divisions, dips, faults, and mineral veins. J. Clifton Ward. 



The work here embodied is the result of the labours of the contributor as 

 an officer of the Geological Survey, but the colouring of the model has been 

 privately undertaken with a view to its presentation to the Keswick Museum 



of Local Natural History. 







3253c. One-inch sheet, 101 S.E. of the Ordnance 

 Survey (Keswick District), converted into a Model, by Mr. 



Jordan, showing ice-scratches, boulder-transportation, and old 

 lake-beds. J. Clifton Ward. 



Prepared by the contributor for the Keswick Museum of Local Natural 

 History. 



3253d. Diagrams of Microscopic Bock - structure ; 



photographs, coloured and uucoloured, enlarged from small water- 

 colour drawings l inches in diameter, made direct from the 

 microscope. J. Clifton Ward. 



The photographs have been taken by the firm of Hennah and Kent, 

 of Brighton, from small water-colour drawings made by the contributor, direct 

 from the microscope, and \\ inches in diameter. 



A. Spherulitic felsite, Carrock Fell, Cumberland. 



B. Hypersthenite, Carrock, Cumberland. 



C. Fine-grained band in Hypersthenitic rock, Carrock Fell. 



Three uncoloured photographs, also taken from small water-colour drawings 

 made by the contributor : 



D. Chiastolite slate, Skiddaw, Cumberland. 



E. Quartz felsite, St. John's Vale, Cumberland. 



F. Skiddaw Slate, passing into quartz felsite, St. John's Vale, Cum- 



berland. 



The small coloured drawings from which these photographs have been taken, 

 are (except in the case of D) also exhibited (see Plate C). 



