10. — List of Works on the Geology of Hertfordshire. 



By William Whitaker, B.A., F.G.S., 



Of the Geological Survey of England, Editor of the ' Geological Record.' 



Communicated by J. Hopkinson, Hon. Sec. 



[Read 9th December, 1875.] 



The following list is one of a series, the corresponding lists 

 for Cambridgeshire, Cornwall, Devonshire, the Hampshire Easin, 

 "Warwickshire, and Wiltshire having already been published by 

 local societies, besides some others in Geological Survey Memoirs, 

 etc. It is for the greater part selected from that in vol. iv. of 

 the ' Memoirs of the Geological Survey,' which refers to a much 

 larger area. There may be other works named in the latter, how- 

 ever, which refer in some measure to Hertfordshire, besides those 

 here given, but which could not be fairly entered without a re- 

 examination of their contents, a task involving great labour. 

 Some additions have been made to the older list, bringing it up to 

 the end of 1873, after which year the newly established 'Geo- 

 logical Kecord' will give full information of works on English 

 Geology, rendering needless any further efforts of my own. 



Although a small county, and with a small range of formations, 

 yet a good deal has been written on the Geology of Hertfordshire. 

 The chief interest perhaps is centred in the Lower Tertiary beds, 

 for our detailed knowledge of which we are so largely indebted to 

 the papers of Professor Prestwich, published in the ' Quarterly 

 Journal of the Geological Society.' The Geological Survey in its 

 progress through the London Basin has indeed, as far as general 

 conclusions are concerned, done little more tlian register the 

 accuracy of Prof. Prestwich's observations and the soundness of 

 his views, filling in of course a vast amount of detail and correct- 

 ing some doubtful points. 



The Glacial Drift is another interesting feature of the county, 

 and all who have studied that wonderful and varying series must 

 bear witness to the good work done in its minute investigation over 

 the whole East of England by Mr. Searles V. Wood, jun. 



Having been to a great extent brought up in Hertfordshire, at 

 the St. Albans Grammar School, it has always been a pleasure to 

 me to have had a share in the Geological Survey of the county, 

 and this pleasure is increased when I am able in any way to help 

 the study of my science therein. 



1756. 



1. Parsons, Dr. J. Remarks upon a petrified Echinus . , . found 

 at Bunnan's Land in the parish of Boviugdon in Hertfordshire. 

 Fhil. Trans, vol. xlix. p. 155. 



1804. 



2. YoTJNO. A. General View of the Agriculture of Hertford- 

 sliire. (With a Map and an Account of the Soils.) 8vo. Loud. 



