BRITISH ISLES, 27 



Marshall, David. Notes on a Visit to Connorree Copper and Sulphur 



Mine, County Wicklow, Ireland. Trans. Edin. Geol. Soc. vol. 11. 



part iii. pp. 282-285, 1 plate (section). 



Contains an account of the geological features of the Connorree Mine 



in the Vale of Avoca, Ireland, together with some details as to the 



working of the mine. H. A.. N. 



Maxwell, L. Geological Section (Report of), llep. Rugby School 

 Nat. Hist. Soc. for 1873, pp. G4, 65 (plates). 



Three sections of " the Oolitic Drift at Brownsover " are given. The 

 beds are gravel and sand, arranged in a sort of basin. Four other 

 sections in gravel, sand, and clay (Bilton) are noticed. W. W. 



Maynahd, Capt. John. Remarks on two Cross-sections through 



Carn Brea Hill and the neighbouring Mines. 41st Ann. Rep. 



Roy. Cornwall Polytech. Soc. pp. 189-203; and Rep. Miners' 



Assoc. Cornwall and Devon for 1873, pp. 43-54 (with 8 i)lates). 



The sections, which pass through the most important mining-districts 



of Cornwall, show the lodes, elvans, and the undulating junction of the 



granite and kiUas, and afford evidence of the fact that lodes abound 



where elvans are numerous. C. L. N. F. 



Meadows, J. M*^C. The Leinster Coal-field. Journ. Roy. Geol. Soc. 

 Ireland, ser. 2, vol. iv. pt. 1, pp. 10-20 (map), and Geol. Mag. 

 dec. 2, vol. i. pp. 97-107. 



The quantity of coal in this field is estimated at 75,000,000 tons. 

 Lying at the junction of Tipperary, Kilkenny, and Queen's County, its 

 greatest length is about 20 miles, and its width 15. A considerable 

 part of this area is occupied with lower beds devoid of coal-seams. The 

 beds dip towards a common centre ; and the central portion was once 

 occupied by the celebrated "Kilkenny Coal," now nearly exhausted; 

 but that part of the " Jarrow" coal next in succession is untouched, 

 and must prove the jmncipal source of future supply. The ii])per and 

 lower coals are described, and two sections given of the seams at the 

 east and west of the field, from which it appears that there are seven 

 or eight workable coals, from 1 to 4 feet thick. The output is about 

 80,000 tons yearly ; sixty years ago it was 170,000 tons. The coals 

 are all anthracitic and smokeless, with high heating power. The author 

 controverts the view of the Geological Survey, that the external seams 

 do not underlie those of the central basin, but are the same brought 

 down by a fault, and adheres to Griftiths's classification, beheviiig them 

 to be distinct seams. E. T. H. 



Mello, Rev. J. M. The Midland Coal Field. Pp. 135-140 of " The 

 Derbyshire Red Book," with map and section. 8vo. Derby. 



The author notices the probable former continuity of some coal- 

 fields which have since been separated through upheaval and denuda- 

 tion, describes the extent of the Midland coal-field (half of which is 

 concealed by overlying beds), notes the estimates that have been made 

 of its probable underground extension eastward, and gives an account 



