502 Geological Society. 



Whitehaven " Main Band"; the lower, containing many thin seams 

 of coal, but only one band which has been much worked near White- 

 haven. They then proceed to describe the most remarkable workings 

 in the several divisions of the Whitehaven field; the new field to be 

 approached by the Parton tunnel ; and the extension of the " Main 

 and Bannock band" to the hills S.E. of Dissington ; but these de- 

 tails, as well as an account of the works attempted in a small trian- 

 gular field bordering the sea to the north of Parton, are necessarily 

 passed over in this abstract. 



They then describe the Harrington coal-field, bounded to the 

 north and south by two enormous faults ; between which the coun- 

 try is occupied by the lower division ot the coal measures. It is 

 impossible in an abstract to describe the complicated /awWs that 

 everywhere intersect this field, and by which the limestone is in two 

 instances brought up to the surface. The coal beds, worked within 

 it, are five in nunibtr, and are described, in descending order, un- 

 der the following names : (1.) Metal Band; (2.) Two-feet Band ; 

 (3.) Yard Band; (4.) Four-feet Band ; (5.) Yendale Band. By help 

 of a transverse section to Castlerigg, this field is connected with the 

 upper division of the coal measures; in as much as pits have been 

 sunk near that place, through the great beds of the upper division, 

 down to the two-Jeet band ; thus giving a consistency and unity to 

 all the sections. 



The authors next describe the Workington field, bounded to the 

 south by the gre&ijaidt which brings in the lower division of the 

 Harrington field ; and to the east and west by the sea and the turn- 

 pike road. The river Derwent was formerly regarded as its north- 

 ern boundary ; but the main band unfortunately thins out a little to 

 the south of VVorkington, and thereby contracts the extension of the 

 valuable part of this field. Nearly all the beds worked in this field 

 belong to the upper division ; and their general agreement with the 

 Whitehaven bands of coal is proved by detailed sections ; especially 

 from the sinkings at tienry Pit near the mouth of the Derwent. 

 The principal yc/wZ/s traversing this district, the outcrops of the prin- 

 cipal bands of coal, and the extension of the works under the sea 

 are described in some detail. Several other small divisions of the 

 great field are then noticed: viz. the Starmire, Keekhill-Side, 

 Brownrigg, Brantliwaite-Edge, Gillgaron, and Graysouthern fields ; 

 after which the authors proceed to describe the phaenoinena on the 

 north side of the Derwent. 



To the north of the Derwent, there is near the sea-coast a sterile 

 region, partly occupied by the lower red sandstone, and partly by 

 the upper division of the coal measures, in which the main coal is 

 wantmg ; a fact connected with the thinning oft" of the main band 

 to the south of Workington. In a very extensive field, commencing 

 a little to the N. of the village of Seaton,and extending over Brough- 

 ton Moor, andfrom thence to Dearham, two beds of coal (known by 

 the ndimes,oit\\e^'' ten-qtiarter baiid" and the "kerJiel and metal hand") 

 have been very extensively worked, and are identified with the " ban- 

 nock-band" and " main-band" of Whitehaven and Workington. 

 The relations of the several parts of this extensive tract of country 



