WORKS ON GEOLOGY, MINERALOGY, AND PALEONTOLOGY OF WALES. 401 



(4) 88 (Milford, Pembroke, Tenby). By Sir H. T. De la Beche, 

 A. C. Ramsay, J. Phillips, D. H. Williams, W. T. Aveline, and J. Bees. 

 No date. 



(5) 39 (Bishop and Clerks, islands). No date. 



(6) 40 (St. David's, Haverfoi-dwest, Narberfcb, Newport). By Sir 

 H. T. De la Beche, J. Phillips, A. C. Ramsay, H. D. Williams, W. T. 

 Aveline, and J. Rees. 1845. Additional lines, by W. T. Aveline, 1857. 



(7) 41 (Caermartben, Llandeilo, Llandovery, Newcastle-Emlyn). By 

 Sir H. T. De la Beche, J. Phillips, and A. C. Ramsay. 1845. Additional 

 lines, by W. T. Aveline, 1857. 



(8) 42, S.W. (S.W. Brecknockshire). By Sir H. T. De la Beche, 

 [Sir] W. B. Logan, and D. H. Williams. No date. 



(9) 42, S.E. (Abergavenny, Crickhowel). By Sir H. T. De la Beche 

 and D. H. Williams. No date. 



(10) 42, N.W. (Brecknock). By Sir H. T. De la Beche, W. T. Ave- 

 LINE, J. Rees, and T. E. James, 1845. Additional lines, bv W. T. Aveline. 

 1857. ^ 



(11) 42, N.E., greater part (Talgarth, Hay). By W. T. Aveline, T. E. 

 James, and J. Rees. No date. 



(12) 43, S.W., W. part (Monmouth). By D. H. Williams and T. E. 

 James. 



(13, 14) 56, S.W. (Builth) and N.W. (Rhayader). By A. C. Ramsay 

 and W. T. Aveline. 1850. 



(15) 56, S.E., greater part (New Radnor). By A. C. Ramsay, W. T. 

 Aveline, H. W. Bristow, and T. E. James. 1850. 



(16) 56, N.P]., greater part (Knighton). By A. C. Rams.w, W. T. 

 Aveline, and H. W. Bristow. 1850. 



(17-19) 57, S.W. (Aberafron), N.W., and S.E. (Tregaron). By A. C. 

 Ramsay. 1848. 



(20) 57, N.E. (Aberystwyth). By A. C. Ramsay. The Lodes by Sir 

 H. De la Beche and W. W. Smyth. 1848. 



(21) 58 (Cardigan). No date. 



(22) 59, S.E. (Coast S.W. of Machynlleth). By A. R. Selwyn. 

 1848. 



(23) 59, N.E. (Coast N.W. of Machynlleth). By A. C. Ramsay and 

 A. R. Selwyn. 1850. Corrections, 1855. 



(24) 60, S.W. (Llanidloes). By A. C. Ramsay and W. T. Aveline. 

 1850. 



(25) 60, S.E., W. part (Montgomery, Newtown). By A. C. Ramsat 

 and H. W. Bristow. 1850. 



(26) 60, N.W. (Dinas, Llanfair). By A. C. Ramsay, A. R. Selwyn, 

 W. T. Aveline, and J. B. Jukes. 1851. Additions, 1855. 



(27) 60, N.E., greater part (Welshpool). By A. C. Ramsay, W. T. 

 Aveline, and E. Hull. 1850. Additions, 1856. 



(28) 73, N.E., small part at N.W. By A. R. Selwyn. 1857. 



(29) 74, S.W. (Bala). By A. C. Ramsay, J. B. Jukes, W. T. Aveline, 

 and A. R. Selwyn. 1850. Corrections, 1855. 



(30) 74, N.W. (Corwen). By A. C. Ramsay, J. B. Jukes, and W. T. 

 Aveline. 1850. Corrections, 1855. 



(31, 32) 74, S.E., W. half (Llanrhaiadr), and N.E., nearly all (Llan- 

 gollen, Wrexham). By A. C. Ramsay, J. B. Jukes, W. T. Aveline, D. 

 Williams, and B. Hull. 1850. Corrections, 1855. 



(33) 75, S.W. (Pwllheli). By A. R. Selwyn. 1851. 

 1880. D D 



