178 Mr. Smith's Geological Claims slated. 



suddenly appearing to decrease, and perhaps to disappear lo- 

 cally; to increase again to perfection, and after a greater or less 

 length of range or breadth, again to decrease and disappear ; 

 and so on. 



10th. Having ascertained, that although the strata of nearly 

 all the south east and east of England, have a general and easy 

 dip towards the south-east ; it is not, as one flat plane that they 

 so dip or decline, but they are waved in a somewhat parallel 

 manner, almost like the surface of a ploughed field : and on the 

 great scale, are found to form ridges and troughs*. 



11th. Having, by the collection of very numerous Specimens, 

 actually ascertained the particular species of fossil Shells and 

 other organic remains, which distinguish teri or more of the prin- 

 cipal Strata of England; having observed that often, where ex- 

 traneous alluvia is absent, the organic remains of the Strata, shovr 

 themselves in the ploughed Soil ; and having extensively^ used 

 these, in conjunction with the other new means above mentioned, 

 of tracing and identifying the Strata, previous to 1799; and hav- 

 ing in that year, made and circulated several manuscript copies of 

 a list of such Shells, &c. f occupying a scries of twenty-three of 

 the principal Strata which are enumerated therein, in their or- 

 der, from chalk downwards to coal: — which order of the Eng- 

 lish Strata Iwd not previously been ascertained and published by 

 any one J ; or the fact known, that London is situated on almost 

 the highest of the British strata, which in the following sum- 

 mer Mr. Smith ascertained. 



12th. Having in the prospectus which Debrett printed and 

 circulated in ISOl, (and of which also gre^t numbers were dis- 



• In April 1812, Mr. Farey puljlisbed a notification of this part of Mr. 

 Smiths discoveries, in the Vhilosophical Mairazine, vol. xxxix. p. 27 1, Note. 



+ The Rev. Bcuj. Richardson, of Farley; William James, Esq. of Wels- 

 bourn ; and the late Rev. Jos. Townsend, of Pewsey, were among thosc 

 who at first received copies of the f^iit, here spoken of, which was drawn vt[. 

 at Mr. Townsend's house in June 1/99; concerning which List, Mr. Fare) 

 published a notice on the 3Ist of May 1815, in the Phil. Mag. vol. xlv. 

 p, 334 ; and in August of the same your, Mr. Smith published a copy of this 

 original List, in the " Memoir," which accompanied his Map, facing p.8. — 

 The late William Reynold, Esq. of Coalbrook Dale, Mr. Thomas Bartley, o.' 

 Bristol, and others (see Phil. Mag. vol. Kxxviii. p. 338, Note) received 

 copies of this List, at second hand, soon afti-r 1799. 



X In confirmation of which, all the numerous uiineralogical and geolfw 

 gical works, learned transactions, periodical publications, or other wcrk'<, 

 prior to 1811 (when Mr. Farey's Derbyshire Report, vol. i. appeared) may 

 in rain be searched, for any such knowledge ; or, for the cle;ir and ea'plicit 

 laying down and acting on, or using for the purposes of geological investiga- 

 tion or theory, any o< the important discoveries and dcductiona, which aie 

 herein claimed for Mr. Smith. 



tributed 



