Part II. 



Page 95, heading, for Cabtocaeis Salteei read Sutubal Cabapaces am) otbebs. 

 ,, 97, line 16 from the bottom, add and vol. vi, pi. clxxxiii, figs. 1, 2. 

 „ 98 „ 3 „ for Regiones D et E read Regis D E. 



,, 101 ,, 2 from the top, for Butowitz read Bubowitz. 

 ,, 101 ,, 7 from the bottom, after vertical insert (dorsal). 



„ 103 „ 13 from the top, for cobdifobhis, sp. nov., read anatina (Salter, 1873). 

 „ 103 ,, 29 ,, for anatina is probably read Marrii is. 



„ 103 ,, 7 from the bottom, delete Coll. Marr. 

 „ 107 ,, 13 from the top, for Inverleithen read Innerleithen. 

 „ ,, ,, 24 ,, insert Clingaui-shales after No. 9. 



,, 110 ,, 13 ., for Lower read Upper. 



„ „ „ 15 „ for 1860 read 1862. 



,, ,, ,, 2 from the bottom, /o^ Lower read Upper. 

 „ 113 ,, 9 ,, insert — — Nicholson, 1879. Palaeontology, edit, 2, p. 348, 



fig. 203 d. 

 ,, ,, „ 21 „ delete and 9. 



„ 111 ,, 12 ,, for anatina, Salter, 1873, read Mabeii, sp. nov. 



,, 115, heading, for anatina read Maebii. 

 ,, „ line 4 from the top, insert by us after thought. 



,, ,, ,, 7 „ for mudstone of the Coniston series read baud of the Skelgill shales. 



,, 116 ,, 16 ,, after from insert the Skelgill beds of. 



,, 121 „ 13 ,, for A. Z. read the Argenteus-zone of the Middle Skelgill Beds. 



,, 123 „ 2 ,, for Coniston mudstone read the Argeuteus-zone of the Middle Skelgill 



Beds. 

 ,, „ ,,23 „ for A. Z. read the Argenteus-zone of the Middle Skelgill Beds. 



,, 124 ,, 14 ,, for graptolitic shale read mudstone of the " barren band " of the Lower 



Skelgill Beds. 

 „ „ ,, 2 from the bottom, for 8, 9, and 10, read 9, 10, and 11. 



Part III. 



Page 125, line 5 from bottom, for Robroystone read Robroyston. 

 ,, ,, „ 3 „ for Limestone read Ironstone. 



,, 126, ,, 9 from top, after limestone insert , Carluke. 



,, ,, lines 17 and 16 from bottom, read strata uuder the Main Limestone series at Craigenglen, 

 Campsie. 

 ,, line 5 from bottom, for D. insirjnis add also Kilbride as a locality. 

 ,, 127, first line, for Chsenocaris read Cali/ptocaris. 



,, „ line 9 from top, after shales add over the Calderwood Cement-limestone, East Kilbride. 

 ,, ,, ,, 16 ,, after Ireland, add The Cock of Arran. 



"The Cock of Arran " is a large fragment of fallen rock lying on the "Raised Beach," and is 

 so named because it was at one time supposed to resemble that bird. It gives its name to the local 



