Geological Society, 



519 



The following section of the principal shaft will illustrate the na- 

 ture of the Panizo deposit. 



1. Caliche. This bed contains near the surface a large quan- 

 tity of common salt, and occasionally a few small papas are found 



in'it 28 yards. 



2. Sinta Cenisaduj ash-coloured, with a few papas ^ 



3. Caliche, or Bmto 12 



4. Sintttf Tisa chiquita, a bed consisting of 96-4 white sand, "l 



3-G sulphuric salts and water ; also a trace of muriatic salts. I -^ 

 A few papas • J 



yards. 



5. Bruto 4 



6. Sinta cascajosa ^ 



7. Sinta Tiquillosa t 



8. Siiifa challosa \ 



9. Bruto manto, many fossil 

 shells i 



10. Bruto conchado, shelly lay- 

 er* ^ 



11. Tisi chiquita, resembling 

 number 4 t 



12. Sinta Tiquillosa ^ 



13. Bruto 4 



14. Sinta Tiquillosa \ 



15. Bruto 4 



16. Sinta challosa \ 



17. Sinta cascajosa, gravelly 

 layer \ 



18. Bruto conchado, shelly* \ 



19. Sinta conchado, shelly*... 2 



20. Sinta challosa ^ 



21. Sinta conchado, shelly,* 

 few papas 



yards. 



22. Sinta cascajosa, gravelly 

 layer 4^ 



23. 2'isa grande, similar to 4. 6 



24. Bruto J. 



25. Sinta cascajosa, gravelly 

 layer \ 



26. Bruto i- 



27. Sinta chadosa \ 



28. Bruto ^ 



29. Sinta harrosa, clayey 

 layer j. 



30. Tisa, similar to 4 \ 



31. Bruto 6 



32. Sinta cascajosa, gravelly 

 layer ^ 



33. Bruto ^ 



34. Sinta chadosa !■ 



35. Bruto 3 



36. Sinta chadosa .4. 



37. Bruto 1 



38. Sinta barrosa, clayey 

 layer ^ 



The layer 38 rests upon the limestone rocks. 



A paper was afterwards read " On the peat bogs and submarine 

 forests of Bourne Mouth, Hampshire, and in the neighbourhood of 

 Poole, Dorsetshire ;" by the Rev. W. B. Clarke, F.G.S.f 



The entrance of Bourne Mouth Valley is one of the many chines 

 which intersect the tertiary strata between Poole Harbour and Christ 

 Church Head, and the valley extends from the sea three and a half 

 miles in a N. W. direction. About halfway, a fork diverges to the west, 

 and this branch with the lower portion of the main valley is called 

 Bourne Bottom, and the eastern branch of the fork, Knighton Bot- 

 tom. In each valley is a small current, and their united waters 

 form the brook at Bourne Mouth. At the head of Knighton Bottom 

 is a peat bog, which contains trunks of oak, alder, birch, and beech 

 trees, also hazel sticks and nuts, and fragments of bark, llie trunks 

 of the trees lie in the direction of the valley, but the stools are 

 firmly fixed upright in the peat. The wood when extracted is soft, 

 but it becomes firm on exposure to the weather, and it is used for 

 purposes of husbandry. The bark, especially that of the beech, re- 



• In these layers, fossil shells, derived from the limestone, are found, 

 t [See the President's Address, in our last number, p. 513.] 



3 A 2 



