270 
THE GEilI.OfilST. 
Fig. 15 — IG. Crania quadrata. From Gare, in Lanarkshire. 
17. . A remarkable fragment of encrinal stem, upon which 
no less than from twelve to tliii-teen specimens of the Crania had 
clustered. Capel Rig, East Kilbride. 
18 — 20. . Three specimens, showing the exterior of tho 
larger or fi-ee 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, Phillips. Exterior of the larger or free valve, from 
Capel Rig and Raes GiU ; principally from the collection of Mr. 
Armstrong. 
28. . Exterior of the smaller or perforated valve. From 
Auchentibber, High Blantyre ; collection of Mr. Bennio. 
20. . From Raes GiU. 
30. LingnJa sqvamiformis, PhilUps. Nat. size. From Corrie Bm-n ; 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 " EU Coal," in the 
parish of Cai'luke. A, occlusor impression. 
33. A beautifully perfect example of tho dorsal 
valve, showing the tlu-eo ridges often obsei'vable in this species. 
From the parish of Carluke. 
34. From Haw Hill, near Lesmahago ; collection of 
Dr. Slimon. 
35. Interior surface and usual dimensions of the 
specimens found in Carluke parish. 
86. Scotica, Dav. From Hall HiU, Lesmahago ; collection of 
Dr. Slimon. 
37. Gare ; collection of Mr. Young. 
38. mytilnides. Sow. A typical example, from Craigenglen, Campsie ; 
collection of Mr. Young. 
39 — 41. Varieties = L. elliptica and L. parallela, Phil- 
lips. From Orchard-quarry, Capel Rig and Robroyston ; collections 
of Messrs. Bemiie 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 GEOLOaiCAL SOCIETIES. 
Geologists' Association. — The Annual Report of the Association has 
recently been printed, and gives a most satisfactory account of the prospects 
and advance of this Society. During the present year the following papers have 
been read* : — 
" On the Theory of a Gradual Withdrawal of Heat from the Earth as Ex- 
planatory of certain Geological Phenomena." By J. Curry, Esq. 
* 'Die Proceedings of tliis Society arc publislicd at the "Geologist" Office, inico One 
Shilling each. 
