TRANSACTIONS OF TIIE SECTIONS. XV11 



Page 



4. Pleochroic Halos. By Professor J. Joly, F.R. S 604 



5. Outlines of the Geology of Northern Nigeria. By Dr. J. D. 



Falconer, M.A., F.G.S 604 



6. Notes on Natal Geology. By Dr. F. H. Hatch, F.G.S 604 



FBI DAY, SEPTEMBER 2. 

 Joint Meeting with Section E (p. 652) 605 



M ON DAY, SEPTEMBER 5. 



1. Report of the Seismological Committee (p. 44) 605 



2. *The Geology of Cyrenaica. By Professor J. W. Gregory, D.Sc., 



F.R.S .' 605 



3. *An Undescribed Fossil from the Chipping Norton Limestone. By 



Marmaduke Odling 605 



4. The Glaciated Rocks of Ambleside. By Professor Edward Hull, 



LL.D., F.R.S 606 



5. The Shelly Moraine of the Sefstrom Glacier, Spitsbergen, and its 



Teachings. By G. W. Lampltjgh, F.R.S 606 



Joint Meeting with Sub-section B (Agriculture) (p. 585) 607 



TUESDAY, SEPTEMBEB 6. 



1. The Cause of Gravity Variations in Northern India. By Professor 



Sir Thomas H. Holland, K.C.I.E., D.Sc, F.R.S 607 



2. Discussion on the Concealed Coalfield of Nottinghamshire, Derby- 



shire, and Yorkshire : — 



(i) On the Concealed Portion of the York, Derby, and Not- 

 tingham Coalfield. By Professor Percy Fry Kendall, 

 M.Sc. F.G.S 608 



(ii) The Coal Measures of the Concealed Yorkshire, Nottingham- 

 shire, and Derbyshire Coalfield. By Walcot Gibson, D.Sc. 609 



3. Marine Bands in the Yorkshire Coal Measures. By H. Culpin ... 610 



4. The Occurrence of Marine Bands at Maltby. By Wm. H. Dyson . . . 610 



5. The Geology of the Titterstone Clee Hills. By E. E. L. Dixon, 



B.Sc, A.R.C.S., F.G.S 611 



6. Structural Petrifactions from the Mesozoic, and their bearing on 



Fossil Plant Impressions. By Miss M. C. Stopes, D.Sc, Ph.D., 

 F.L.S 613 



7. On some Rare Fossils from the Derbyshire and Nottinghamshire 



Coalfield. By L. Moysey, B.A., M.B., F.G.S 613 



a 



