PLATE. 



I. Illustrative of Mr. J. A. Phillips's Paper on the Connexion of certain 

 Phenomena with the Origin of Mineral Veins. 



Errata in Messrs. Stoney and Reynolds's Paper on the Cause of the In- 

 terrupted Spectra of Gases, Phil. Mag. July 1871. 



Page 47, line 2, for {6+^) read (0+| . 2tt). 

 „ - „ 3,/or (0+f7r) read (0+f. 2rr). 

 „ — „ 4,for(6-]-i7r)read(6+i.27r). 

 „ — „ 5,for(0+JTr~) read (e+±.27r). 

 „ — „ 16, for form (5) read form (7). 



