CORRECTIONS AND NOTES. 311 



CORKECTIONS AND NOTES TO CHAPTER L 



(GEOLOGY). 



Page 6 line 22, for Spirorbis read Spirorbes. 



,, 10 ,, 8, ,, iridoines ,, iridinoides. 



,, li ,, 1, ,, underlies ,, overlies. 



""ofC&^)°!'!} " T-sica „ Iriassica. 



This geological chapter having been written for a special object, and sub- 

 ordinate to an account of the botany, and chiefly rttoreover giving genera- 

 lized results of my o^vn researches, it seemed unnecessaiy to enter into the 

 bibliography of our local geology. In passing I have mentioned the names 

 of those who have contributed special information ; and I hope hereafter, 

 in a more extended memoir- on the geology of Northumberland and the 

 Borders, to go more fully into the subject. A few other references may 

 be given here. 



The genera recently added to the Ichthyology of the Coal Measures by 

 Professor Owen, and referred to in page 16, have been described and illus- 

 trated by him in the " Transactions of the Odontological Society" for 1867. 

 Mr. Atthey, however, in a paper recently read before the Tyneside Club, 

 disputes the validity of most of these new genera; and his paper will, I 

 understand, be printed in om- " Transactions." Messrs. Hancock & Atthey 

 have also, in the "Annals and Magazine of Natural History" for February, 

 1868, described six new species of CtenodKs, obtained from the shales con- 

 nected with the Low Main Seam of Coal. This was also read at a meeting 

 of the Club, and will be printed in the " Transactions." 



Little has been added to the Flora of the Newcastle Coal Measures since 

 the time of Lindley and Hutton, whose "Fossil Flora," published from 1831 

 to 1837, furnishes desciiptions of most of the known species. Witliam, in 

 his observations on Fossil Vegetables in 1831, and in his "Vegetable Fossils 

 of Lennel Braes," explained the internal structures of some fossil plants. 



