270 



THE GEOLOGIST. 



Fig. 15 — 16. Crania quadrata. From Gare, in Lanarkshire. 



17. . A remarkable fragment of encrinal stem, upon which 



no less than from twelve to thirteen specimens of the Crania had 



clustered. Capel Rig, East Kilbride. 

 18 — 20. . Three specimens, showing the exterior of the 



larger or free valve, from Capel Rig ; in the collection of Messrs. 



Armstrong and Thomson. 

 21. . A specimen of Discina nitida, upon which four 



Cranias had congregated. 

 22 — 27. Discina nitida, Pliillips. Exterior of the larger or free valve, from 



Capel Rig and Raes Gill ; principally from the collection of Mr. 



Armstrong. 



28. . Exterior of the smaller or perforated valve. From 



Auchentibber, High Blantyre ; collection of Mr. Bennie. 



29. . From Raes GiU. 



30. Lingula squamiformis, Philhps. Nat. size. From Corrie Burn ; collec- 



tion of Mr. Young, 



31. . Another example, in the Museum of Practical 



Geology. 



32. ■ — — — . Interior of the ventral valve, and an internal 



cast of the dorsal one ; from 341 fathoms below " Ell Coal," in the 

 parish of Carluke. A, occlusor impression. 



33. A beautifully perfect example of the dorsal 



valve, showing the three ridges often observable in this species. 

 From the parish of Carluke. 



34. From Haw Hill, near Lesmahago ; collection of 



Dr. Shmon. 



35. . Interior surface and usual dimensions of the 



specimens found in Carluke parish. 



36. Scotica, Dav. From HaU Hill, Lesmahago ; collection of 



Dr. Slimon. 



37. Gare ; collection of Mr. Young. 



38. mytiloides, Sow. A typical example, from Craigengien, Campsie ; 



collection of Mr. Young. 



39 — 41. Varieties = L. elliptica and L. parallela, Phil- 

 hps. From Orchard-quarry, Capel Rig and Robroyston ; collections 

 of Messrs. Bennie and Thomson. 



42, — A very elongated variety, from Marshall Meadows, 



Berwickshire ; in the collection of Mr. G, Tate. 



43. . This specimen was found highest in the formation, 



viz., at 160 fathoms below "Ell coal," and 13 fathoms above the 

 Discina bed in the parish of Carluke. 



PROCEEDINGS OF GEOLOGICAL SOCIETIES. 



GEor.oGisTs' Association, — The Animal Report of the Association lias 

 rcccMitly hvvn printed, and gives a most satisfactory account of the prospects 

 ami ;ul\ ;uu'iu)f this Society. During the present year the following papers have 

 been read* : — 



" Oil tlic Theory of a Gradual Withdrawal of Heat from the Eartli as Ex- 

 lil;ni;dory of certain Geological Phenomena." By J. Curry, Esq. 



* The rvocecdiugs of this Society arc pubhshccl at the "Geologist" OilicG, price One 

 Shilling eaoh. 



