iS8 bibliography: geology and pal.eoxtology, iS86. 



J. Stanley Tute. Yorkshire. 

 The Cayton Gill Beds. [A bed of highly fossihferous rocks, immediately 

 underlying the Plompton Grit, described. Localities of outcrops and fossils 

 given.] Prcc, Yorks. Geol. and Polyt. Soc, 1886, pp. 265-267. 



F. F. Walton. ' Yorkshire. 



Geology of the District between Market Weig-hton and the Humber. 



[Describing the Liassic, Oolitic, and Cretaceous strata of the district, and 

 indicating the localities of instructive sections.] Hull, 1886, 24 pages. 

 [Re^-iewed in Xaturalist, March 1887, pp. 88, 89.] 



Thomas Ward. Cheshire, Yorkshire. 



On Rock Salt, [Deposits of rock salt in various parts of the world and in 

 all geological ages described in detail. Borings at Middlesbrough, North- 

 wich, and other places given. Method of deposition of rock salt adduced. 

 The geology of the Great Cheshire Triassic Salt Lake described. Conclusion^ 

 arrived at : that our beds of rock salt have been cr)-stallized out of the 

 saturated waters of salt lakes, and that their admixture of marl has been 

 caused by streams running into the lake during the wet seasons, and that the 

 peculiar amorphous mixture of marl and salt, known as rock salt, is the 

 result of the continual growth of pure salt crystals, and their partial destruc- 

 tion by mud -bearing fresh waters.] Trans. Manchester Geol. Society, vol. 

 xviii. Part 15, pp. 396-419. 



Thh.. \Vard. Cheshire. 

 On the Subsidences in the Salt Districts of Cheshire : their history 

 and cause. [Subsidences of two classes, i. Those taking the form of a 

 funnel-shaped hole of var}-ing diameter and depth. 2. Those forming 

 trough-shaped hollows, varying in breadth and depth. The history of sub- 

 sidences in Cheshire given. Causes : mining of rock salt, pumping of brine, 

 and also from a combination of the two.] Trans. Manchester Geol. Society, 

 vol. xix. Parts 6 and 7, pp. 152-172. 



T. C. ^^'ELCH. Cumberland, Durham. 



Analyses of Some Iron Ores [including Haematite from Ulverstone with 

 60 "2 p.c. metallic iron, and Limonite from Weardale]. Chem. News, Jan. 

 29th and Fel). 5th. vol. liii. pp. 52-53, 65 : 1886. 



AViLLiAM AVatts. Lancashire. 

 Geologfical Sketches at Piethorn and Denshaw [The glacial phenomena, 

 stratigraphy, and physical features of this district noticed in detail]. Trans. 

 Manchester Geol. Soc, vol. xix. Part 2, pp. 47-58. 



George Wild. Lancashire. 

 On Section of Shaft sunk throug-h the Middle Coal Measures at 

 Bardsley CoUiery, and an interesting discovery of Calamite. [Measured 

 section given, showing general character of strata passed through, also 

 mineralogical and paleontological characteristics.] Trans. Manchester Geol. 

 -Society, vol. xviii. Part 16, pp. 446-464. 



A. >. Woodward. Yorkshire. 

 Notidanus Amalthei (Oppel) [describes a tooth probably belonging to this 

 Selachian genus, from the Middle Lias, Whitby]. Geol. Mag., Nov. 18S6, 

 Dec. iii. vol. iii. pp. 525, 526. 



T. Wright. Yorkshire. 

 Monograph on the Lias Ammonites of the British Islands [concluding 

 part, with description (pp. 482, 483) oi AvialtJieiis loiticidaris from the iron- 

 stone beds at Eston, Upleatham, and Hawsker, near Whitby.] Palceonto- 

 graphical Society's vol. for 1885, jxib. 1886. 



[Yorkshire Xaturalists' Union]. Yorkshire. 

 [Excursion to Askern, May 24th — Xaturalist, 1886, p. 190 ; Excursion to 

 Flamborough Head, June 14th — Naturalist, 1886, pp. 217-219; Excursion 

 to Upper Nidderdale^ July 17th — Xaturalist, 1 886, pp. 254, 255 ; Excursion 

 to Pickering for Xewtondale, August 2nd — Xaturalist, 1886, pp. 274. 275. 



