T. Wright — D. Mackintosh— E. Hull 95 



tliat T had made an incorrect diagnosis of ^' a group of fossils, on 

 which I had been so long at work," merely to show that the cor- 

 rection of the error was due to himself. 

 ; Cheltenham, 4.th Jan., 1876. ThomAS Wright, M.D. 



UPPEE BOULDEE-CLAY OF THE N.W. OF ENGLAND.^ 

 Sir, — I am sorry that the very eminent glacialist, Mr. Kinahan, 

 did not see a better specimen of the above deposit than that men- 

 tioned in his article.^ I have been familiar with it, for many 

 years, in the flat and low-lying districts of Shropshire, Cheshire, 

 Lancashire, and West Cumberland. It is the best-defined, most 

 persistently uniform in its character, and horizontally-continuous of 

 any glacial deposit I have seen. It likewise contains the largest 

 per-centas;e of flattened pebbles with parallel and perfectly-preserved 

 striaa. With regard to the drifts of the Isle of Man, I think they 

 ought to be compared with the magnificent normal sections occurring 

 on the opposite sea-coast of Cumberland, between Maryport and St. 

 Bees, but especially between Eavenglass and Millom. For informa- 

 tion on the above subjects, see Geol. Mag. for Dec. 1870, June and 

 July, 1871, and Sept. 1872. See also Quart. Journal Geol. Soc, 

 vol. XXV. p. 407 ; vol. xxviii. p. 388; and vol. xxx. p. 181. 



D. Mackintosh. 



1 This letter has been accidentally held over. — Edit. Geol. Mag. 



2 Geol. Mag. 1875, Decade II. Vol. II. p. 547. 



THE SCAELE BOEING, LINCOLNSHIEE. 



Sir, — It may interest your readers to learn that this deep boring 

 has at length entered the Coal-measures at a depth of 1,900 feet, after 

 passing through strata from the Lower Lias downwards to the Coal- 

 measures. The Permian beds were found of greater thickness than 

 was expected, and for some time disappointed the expectations of 

 those who hoped the Coal-measures would be reached at a less depth 

 than has actually proved to be the case. The core which was sent 

 to me last week by Mr. J. T. Boot, Mining Engineer, who has 

 superintended the work, consists of grey fine-grained grit, slightly 

 micaceous, containing carbonized plants, but too much rubbed for 

 determination. It came from a depth of 1,906 feet. Judging from 

 the lamination, the dip of the beds is moderate. The boring reflects 

 great credit on the Diamond-Boring Company, and upon the adven- 

 turers, who, through much discouragement, have persevered ; and it 

 is to be hoped that ere the experiment is abandoned, an actual coal- 

 seam will be pierced through. 



I hope to be able to draw up a detailed account of this most inter- 

 esting attempt to reach coal far beyond the district in which it is 

 worked. Edward Hull. 



Geological Survey of Ireland, 



14, Hume Street, Dublin, 17 Jan. 1876. 



Miscellaneous. — Prof. A. E. Nordenskiold and the Swedish Expedition 

 TO THE Polar Sea. An Imperial ordinance was officially published at St. Peters- 

 burg, Jan. 1st, 1876, directing that the thanks of the Eussian Government be con- 

 veyed to the Swedish Professor Nordenskiold, for his exploration of the Polar Sea 

 up to the Yenisei Eiver. 



