43G ME. J. F. JACKSOi^ ois" [vol. Ixxviii, 



III. Day, E. C. H. ' On the :\[iddle & Upper Lias of the Dorsetshire Coast ' 



Q. J. G. S. vol. xix (1863) p. 278. 



IV. IJe Geegoeio, a. ' Moiiographie des Fossiles de S. Yigilio' Ann. Geol. 



Pal. livr. 5, 1886.' 

 V. EuDES-DESLOJfGCHAMPS, E. F. G. ' Etudes sur les Etages Jurassiques 

 interieurs de la Xormandie ' 1864. 

 YI. HuDLESTox, W. H. ' A Monograph of the British Jurassic Gasteropoda i 



Part I— Gasteropoda of the Inferior Oolite ' (Pal. Soc.) 1887-1896. 

 VII. Moore, Chaeles. ' On the Middle & Upper Lias of the South- West of 

 England ' Proc. Somerset Arch. Soc. vol. xiii (1867) p. 119. 

 VIII. Paeona, C. P. 'Xuove Osserva/.ioni sopra la Fauna & I'Eta degli Strati 

 con Fosidonomya alpina nei Sette Coniuni ' Palaeont. Italica, vol. i 

 (1895) p. 1. 

 ]X, 1. RicHAKDSOX, L. ' A Handbook to the Geology of Cheltenham & Neigh- 

 bourhood ' 1901. 



2. Do. " Keport of an Excursion to Bridport, Beaminster, & Crewkerne '" 



Proc. Geol. Assoc, vol. xxvi (1915) p. 47. 



3. Do. ' The Inferior Oolite & Contiguous Deposits of the Doulting-Milborne- 



Port District (Somerset) ' Q.J. G. S. vol. Ixxi (1915-16) p. 473. 



4. Do. ' The Inferior Oolite & Contiguous Deposits of the Crewkerne- 



District (Somerset) ' Q. J.G.S. vol. Ixxiv (1918-19) p. 145. 

 X. Steickland, H. E., & BucKMAjf, J. ' Outline of the Geolog}- of the 

 Neighbourhood of Cheltenham, bj- K. I. Murchison' new ed. 1844. 

 XI. Vacek, M. ' Fauna der Oolithe von Cap San Vigilio, &c. ' Abliandl.. 

 K. K. Geol. Reichsanst. vol. xii (1886) p. 57. 

 XII. Waleiee, J. F. 'On Liassic Sections near Bridport (Dorsetshire) ' Geol. 

 Mag. 1892, p. 437. 



XIII. WiTCHELL, E. ' The Geologj- of Stroud & the Area drained b}' the Frome ' 



1882. 



XIV. WooDWAED, H. B. ' The Jurassic Rocks of Britain : vol. iii, The Lias of 



England & Wales ' Mem. Geol. Surv. 1893. 



YIII. Appexdices. 



Appendix I — Sections of the Ju^x'tiox-Bed axd CoxxiGUors. 

 Deposits. Bj James Feedeeick Jacksox. 



[In brackets remarks on ammonites and brachiopods, by S. S. Buckman.] 



(]) Introduction. 



Mj^ acquaintance with the Junction-Bed dates from 1912 ; and^ 

 in the course of a number of visits to the sections between that 

 date and 1920, several interesting facts bearing on the stratigraphy 

 and palseontology of the bed have come under observation. Some 

 of these facts appear to be new, and others, while not strictly new, 

 have proved to possess a greater significance than had previously- 

 been recognized. 



(2) .Characters of the Junction-Bed (Western Cliffs). 



In 1910 Mr. Buclanan ^ recognized six separate layers in the 

 Junction-Bed, and referred them to the hemerse striatiihim, lilli(?), 

 hifrons, fcdciferum, and spinatum. Day's ' Pleurotomaria Bed' 

 was not certainly identified. I have now noted, in addition to 

 the above subdivisions : (i) a lenticular development of clay (0) 

 between the faJciferum and spinatum layers at Down Cliffs;. 



^ ' Certain Jurassic (Lias-Oolite) Strata of Sonth Dorset, & their Corre- 

 lation ' Q. J. G. S. vol. Ixvi (1910) pp. 57 et seqq. 



