318 Bibliography : Geology and Palaeontology, 18QJ-4-6. 



is often difficulty and uncertainty, and we might instance some 

 Transactions as not even stating- the year of publication of the 

 various parts. Bibliographers would greatly appreciate attention 

 to this point. 



The Watsonian vice-counties are adopted throughout these 

 bibliographies as more convenient and uniform in extent than 

 the political counties ; those comprised within the North of 

 England are the following : — 



53, Lincoln S.; 54, Lincoln N.; 56, Notts.; 57, Derby; 58, 

 Cheshire; 59, Lancashire S. ; 60, Lancashire W. ; 61, York S.E.; 

 62, York N.E. ; 63, York S.W. ; 64, York Mid W. ; 65, York 

 N.W. ; 66, Durham; 67, Northumberland S. ; 68, Cheviotland ; 

 69, Westmorland with Furness and Cartmel ; 70, Cumberland; 

 and 71, Isle of Man; with their adjoining seas. 



The use of the phrases ' Northern Counties,' ' Lake District,' 

 'Yorkshire,' etc., implies that the references are vague, or 

 general in their application; the phrase 'All the Northern 

 Counties ' implies that every vice-county is represented by 

 definite mention ; in all other cases the vice-counties referred 

 to are named. 



1893. 



A. Lacroix. York N.E. 



Les Enclaves des Roches Volcaniques [pp. 653, 654 and pi. 2, 



fig - . 1 ; the demolition by fusion of a derived felspar crystal enclosed in 

 the Cleveland dyke at Great Ayton]. Macon, 1893. 



Northd. S., Durham, York N.E., Lanc S. and W., 

 W. H. Wheeler. Chesh., Linc. N. and S. 



Tidal Rivers, their (1) Hydraulics, (2) Improvement, (3) Navigation 



[investigating- the motion of the water in an estuary, the formation of 

 bars, the littoral drift, etc. ; the Tyne, Tees, Mersey, Dee, Ribble, and 

 Witham considered]. Roy. 8vo., pp. viii. +467, 1893; London. 



1894. 



Harry Speight. York Mid W. 



Nidderdale and the Garden of the Nidd : a Yorkshire Rhineland 



[with incidental notes on the geology and physical features]. 8vo. , 

 pp. 514; London, 1894. 



1896. 



George Frederick Deacon. Lanc. S. 



[Geological Notes on] " The Vyrnwy Works for the Water- 

 Supply of Liverpool." Proc. Inst. Civil Engineers, Vol. 126, 1895-6, 

 Part 4, pp. 24-67 ; discussion at pp. 68-125. 



George Henry Hill. Lake District, Lanc. S. 



"The Thirlmere Works for the Water-Supply of Manchester" 



[Geological Notes]. Proc. Inst. Civil Engineers, Vol. 126, 1895-6, Part 4, 

 pp. 2-23 ; discussion at pp. 68-125. 



Edwin A. Walford. Northern Counties. 



On the Making of the Middle Lias Ironstone of the Midlands. 



Quart. Journ. Iron and Steel Inst., 1896 [not seen]. 



Naturalist. 



