ERRATA CORRIGENDA ET ADDENDA, 



Page xxxvii, last line, for "hem" read "them." 



Plate VII. Doubtful faults are shown thus . 



Table facing p. 42, last line of column 2, for " ironstones " read " horn- 

 stones." 



Page 222, last line, for " sles " read " isles." 

 „ 226, line 21, for " the object " read " one object which." 

 „ 235, line 34, for " PL IX. fig. 3 " read " PI. X. fig. 1." 

 „ 254, line 14 from bottom, for " Ehynchonella cruets " read " Ehyncho- 



72, Gild CvO S'N I 1 



„ 256, note, for " PI. X. fig. 2 " read " PI. X. fig. 1." 



,, 264, line 6, for " spines " read " spires." 



„ 271, hne 6 from bottom, for "poltids " read " pothds." 



„ 282, line 8 from bottom, for "Physical Geology" read " Stratigra- 

 phical Geology." 



„ 300, line 14, for " ahd " read " and." 

 Plate XL The pink patch at the southern extremity of the island of Raasay 

 should be dark red, representing "felstone" instead of "trap." 

 Page 441, Title of paper dele " LL.D." 



„ 530, line 8, for " 5th" read " 1st." 



,, 532, line 7 from bottom, for " Gal way " read " Antrim." 



Note to Mr. Sharp's ^ffper on " The Oolites of Northamptonshire," p. 285. 



[Dr. Lycett has been good enough to point out to me that Am. terebratus, 

 Phil., occurs not in the Grey Limestone of Scarborough (as stated, page 285), 

 but in the Cornbrash of both Yorkshire and the South-west of England. The 

 presence, however, of Maria Phillipsii, d'Orb., Natica adducta, PniL, Trochus 

 monilitectus, Phil., Gervillia acuta, Sow., Hinnites abjectus, Phil., sp., Lueina 

 despecta, Phil., Ehynehonella spinosa, Schloth., sp., and other forms, both in the 

 Grey Limestone of Scarborough and in the Lincolnshire Limestone, sufficiently 

 attests the affinity of the two formations. The assignment of A. terebratus to 

 the Grey Limestone was not made by me, but probably arose from a misplaced 

 specimen, a mistake likely to be occasioned by the similarity of the matrices, 

 and affording another instance of the danger of relying upon the mineral condi- 

 tions of a specimen in determining the identity of the bed from which it has been 

 obtained. — S. S.] 



