L WOODCUTS AND OTHER ILLUSTRATIVE FIGURES. 



Flfi. PAGE 



4. Terminal Moraine of the Lewis Glacier 522 



5. Isobaric Map, showing low-pressure area in Equatorial Africa. 52'.) 

 Geological Sketch-map of neighbourhood of Builth 568 



1. Section south of Tan-y-graig 572 • 



2. Section seen in road-cutting at back of Pen-cerig House 575 



1 . Diagrammatic section along railway, west side of Llyn Padarn. 583 



2. Section along slate-railway, east of Llyn Padarn 590 



f The alleged unconformity, by slate-railway east side of Llyn 

 *\ Padarn 592 



4. Sketch-map of part of Llyn Padarn 594 



5. Section across Moel Goronwy 597 



1. Olendlus gigas, sp. nov 667 



2. Telson of Olcnellus and Mesonacis 673 



1 f Section of siliceous rock with sponge-spicules, etc. (Bargate 



l, l series) .'.... 682 



2. Section of Bargate Limestone 684 



3. Section of Neocomian Limestone from the Richmond Boring... 686 

 Section through a cone-in-cone bearing nodule 734 



CORRIGENDA. 



Proc. page 7, line 6 from top, for ' South ' read ' North.' 



Proc. page 13, line 15 from top, for ' 15 1 7 ' read ' 115 1 7-' 



Page 85, line 11 from bottom, for 'in the year 1842' read ' about the year 



1831.' 

 Page 89 (section), Rizama should be to the left, not to the right of the two- 

 ridged hill. 

 Page 103, line 11 from top, for ' hone like ' read ' bone-like.' 

 Page 103 (Explanation of PL VIII.), for ' Ciripuru ' read ' Ciripiru.' 

 Plate VIII. In the scale of kilometres, for ' 10, 20, 30 ' read ' 20, 40, 60.' 

 Plate VIII. In the key-map of S. America, the highlands of Brazil are erroneously 

 represented as consisting of mountain-ranges, whereas they are for the 

 most part gently-undulating table-lands intersected by deep river- 



Page 110, line 18 from top, for ' Sarana' read ' Tarana.' 

 Page 117, line 5 from top, for ' microscopic' read ' macroscopic.' 

 Page 173, line 3 from top, for ' lime' read ' carbonate of lime.' 

 Page 291, note line 1, for ' seciton ' read ' section.' 



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