202 PEOCEEDINGS OF THE GEOLOGICAL SOCIETY. [Jan. 11, 



Per cent. 



British 61-5 



Southern 38-4 



Arctic 100-0 



N. E. American 84-6 



N. Pacific 23-0 



3. List of Shells from the hrick-worTc at Kilchattan, in the island of 

 Bute, about 20 feet above the sea. (See page 174.) 







^ 



_^ 





o 



o 



'43 









3 



M 



o . 

 O g 



5 



o 

 O ■ 



XI . 







a 



II 



•s'B 



OK 





t3S 



ba 



bD 



bo 







a 



13 



.So 































Hi 



►J 



1-1 



►J 





* 



* 



* 



* 









* 



* 



* 



* 



* 



* 



* 





* 



* 



* 



* 





* 



* 



* 



* 



* 



? 





* 



* 





* 



P 



* 



* 





* 



* 



* 



* 





* 



* 



* 







* 



* 



* 



* 



* 



* 





* 

 * 



* 

 * 



* 



* 





* 



* 









* 



* 



* 



* 



* 



* 



* 





16 



Anomia ephippium, Linn., Tar. aculeata. One 



specimen 



Axinus flexuosus, Mont., var. Gouldii. Eight or 



nine single valves 



Buccinum undatum, Linn. A few 



Cyprina Islandica, Linn. A few 



Lacuna divaricata, Fabricius. Three 



Leda pernula, MilUer. Nine, mostly entire . 



Leda pygmsea, Milnster. One valve 



Littorina litorea, Linn. Two 



Montacuta ferruginosa, Mont. One entire valve, 



full size 



Mya truncata, Linn. Several 



Mytilus modiolus, Linn. One small valve . . . 



Mangeha pyramidalis, Strom. One 



Natica pallida, Brod. ^ Sow. About a dozen . . 



Natica affinis, Gmelin. One or two 



Scrobicularia prismatica, Montagu. One entire 



specimen 



= Syndosmya prismatica, F. ^ S. 

 TeUina calcarea, Chemn. In great abundance and 



entire, of all sizes up to one inch 



Per cent. 



British 68-7 



Southern 50-0 



Arctic 1000 



N. E. American • 87"5 



N. Pacific . ... . . ..... . . 31-2 



4. List of Shells found in a seam, of gravel at a railway -cutting be- 

 tween Drgmen and Gartness, Stirlingshire, at about 120 feet above 

 the sea. (See page 172.) 



One 



Four entire valves and 



Anomia ephippium, Linn. 

 Astarte compressa, Mont. 



many fragments 



Astarte sulcata. La Costa. 



var. eUiptica, Brown. Broken pieces very common 



