THE GEOLOGY OF THE ENGLISH CHANNEL. 119 



" West Country Greological Problems," published in the same Transac- 

 tions. It is notewortliy tliat Mr. Hunt was on tlie track of a shore 

 prol)lein when his attention was thereby directed to the large Itoulders 

 occasionally trawled by the fishermen off the south coast of Devon, 

 and it is to these boulders that he confines his work. None the less 

 he stands the first to really approach the matter from the point of 

 modern petrology. 



Meanwhile, in 1886, the late E. N. Woeth had taken up the 

 question on very similar lines, and in the Quarterly Journal of the 

 Geological Society, in August of that year, he reported the existence of 

 a submarine Triassic outlier off the Lizard ; in a subsequent paper, in 

 the Transactions of the Royal Cormvall Geological Society, he dealt with 

 a similar discovery off the Dodman. 



Here the matter rested until, in 1895, Dk. Allen commenced an 

 investigation into the fauna and bottom-deposits near the thirty- 

 fathom line from the Eddystone grounds to Start Point. In the 

 course of this work numerous samples of the bottom-deposits were 

 taken, and in vol. v, no. 4, of this journal will be found, incorporated 

 in Dr. Allen's paper, some notes on these. The geologic results were 

 subsequently dealt with at greater length by the present writer in the 

 Transactions of the Devonshire Association, 1899, xxxi. pp. 356-75 

 (" The Bottom-Deposits of the English Channel from the Eddystone 

 to Start Point, near the Thirty-Fathom Line "). Since 1899 the 

 inshore grounds nearer Plymouth have also been subjected to an ex- 

 amination on similar lines, and additional geological information 

 obtained which has not hitherto been published. 



In the present paper it is intended to incorporate the whole of the 

 previous results with the work done in 1906, of which latter an account 

 is given by Mr. Crawshay in the preceding pages. By Mr. A. E. Hunt's 

 kind consent an abstract of his petrographic work is added by way of 

 an appendix, which, with other short appendices, will bring together 

 the whole of our present knowledge of the geology and petrology of 

 the western part of the English Channel. 



Mr. Crawshay's long line of dredgings, extending to a point near 

 50 miles S. 16r W. from the Eddystone, and Mr. Hunt's specimens, 

 which reach 43 miles E. of the Eddystone, between them cover a large 

 area ; while to the westward for a distance of 36 miles we have the 

 records of the late E. N. Worth. The difficulties which exist where 

 no field work is possible are naturally considerable, but, as the writer 

 has endeavoured to show elsewhere, very definite results, within certain 

 limits, may be obtained by an inquiry of this kind. Other usual 

 observations being barred, lithology becomes of the utmost importance, 



NEW SERIES. — VOL. VIII. NO. 2. I 



