PLATES IN VOL. VII. (New Series.) 



Plates. Page 



XXIV.— Rocks ofMountSorrel 1 



XXV. — On Felspar, Albite, Labrador, and Anorthite 49 



XXVI.— On the Stability of Floating Bodies 81 



XXVII. — Apparatus for the Analysis of Organic Products 170 



XXVIII. — On some Geometrical Principles connected with the Trisec- 



tion of an Arc 35G 



XXIX.— On Fulminate of Silver 415 



ERRATA. 



Page 29, line \8,for Lapulin, read Lupnlin. 

 83, line 10, for Ther. read Thus. 

 325, line 19,/ur infringe, read impinge. 

 327, line 2, for assent, read agent. 

 3S4, line 4 from bottom, for L. Italioa, read L. Italica. 

 388, line 4, for Harleston, read Starston. 

 b,for Clarton, read Clacton. 



