28 DRAKE AND SHEPPARD: CLASSIFIED LIST OF ORGANIC REMAINS. 
THE UPPER, MIDDLE AND LOWER CHALK. 
Bibliography. 
L Professor J. Phillips. " Geology of the Yorkshire 
Coast," 3rd Edition, 1875. 
2. J. F. Blake. " On the Chalk of Yorkshire," Proc. 
Geol. Asso., 1878. 
3. A. J. Jukes Browne and W. Hill. Memoir of Geo- 
logical Survey. " The Cretaceous Rocks of 
England ; the Upper Chalk," Vol. III., 1904. 
4. G. W. Lamplugh. "The Yorkshire Chalk," Proc. 
Yorks. Geol. Soc, 1895. 
5. A. W. RowE and C. D. Sherborn. "The Chalk of 
the Yorkshire Coast," Proc. Geol. Asso., Feb., 
1904. 
6. In the collection of J. W. Stather. 
7. In the collection of J. R. Mortimer, Driffield. 
8. In the collection of H. C. Drake. 
9. Collected by T. Sheppard. 
10. "The Naturalist," 1906-7-8. 
11. Professor Barrois. " Recherches sur le Terrain Cretace 
de I'Angleterre et de I'lrlande." 
12. Collected by C. Thompson and Dr. Walton. 
13. Collected by G. Sheppard. 
14. Henry Woods. " Monograph of the Cretaceous 
Lamellibranchiata," Palse. Soc, 1899-1908. 
15. Collected by Mr. A. J. Moore, and now in the Hull 
Museum. 
