Explanation of the Plates. 433 



EXPLANATION OF THE PLATES 



TO VOL. II. 



PLATES I. & II. 



Illustrate Mr. H. L. Pattinson's Account of the Method of Smelting Lead Ore and Re- 

 fining Lead. Article III. page VI. 



PLATE III. 



Illustrates Mr. Peile's Notes of a Transformation of the Seams of Coal into Stone in Crum- 

 mock Colliery. Article IV. page 178. 



PLATE III*. 



Illustrates Mr. Atkinson's Account of St. Kilda. Article VII. page 215. 



PLATE IV. 



Illustrates Mr. M. Dunn's Narrative of the Sinking of Preston Grange Engine Pit. Article 



VIII. page 226. 



PLATES V. & VI. 

 Illustrate Mr. Witham's Paper on Leopidodendron Harcourtii. Article IX. page 256. 



PLATE V. — Fig. 1. — External appearance of the Fossil, natural size. 



Fig. 2. — Longitudinal Section, through the centre, not including the whole breadth, natural size. 



Fig. 3. — Transverse Section, natural size. 



Fig. 4. — Longitudinal Section, not through the centre, natural size. 



Fig. 5. — Transverse Section of a part towards the circumference, enlarged. 



Fig. (i. — Transverse Section, enlarged. 



Fig. 7. — Longitudional Section, enlarged. 



Fig. 8. —Transverse Section of Stem of Lycopodium clavatum, enlarged. 



Fig. 9. — Portion of Longitudinal Section of the same. 



PLATE VI.— Fig. 1. — Transverse Section of another portion of the Fossil Stem, natural size. 

 Fig. 2. — Portion of Transverse Section, enlarged. 



Fig. 3. — Portion of the same towards the circumference, enlarged in a higher degree. 

 Fig. 4. — Portion of a Transverse Section, shewing part of the pith. 



VOL. II. 4 I 



