XIU 



The Mackerel taken from Penzance and Saint Ives by Railway ® in 



1866 amounted to 1,425 tons; 

 „ „ 1867 „ 2,672 tons; 



„ „ 1868 „ 3,675 tons; 



„ „ 1869 „ 633 1 tons; 



Of the home consumption — ^Avhether of pilchards, mackerel, 

 or any other fish, — I have been unable to obtain accounts. 



The Brocoli and Potatoes forwarded from West Penwith by 

 Railway * have been : — • 



Years. Brocoli. Potatoes. 



1866 . 1,418 tons; 



1867 l,544tons; l,695tons; 



1868 3,571 tons; 2,732 tons;t 



1869 2,358 tons;t 



Of the shipments from Hayle and Penzance I can give no 

 particulars. 



During the past year the orthoclase and albite felspars, as well 

 as the white and black micas, of our western granites, have been 

 carefully examined:}: by the Rev. Professor Haughton, D.C.L., 

 F.R.S., of Trinity College, Dublin. 



The first analysis of Cornish gold has, so far as I am informed, 

 been made in the present year ; the specimen analysed was pro- 

 cured from Saint Austell Moor, through the kindness of Mr. Mar- 

 tyn, of the Higher Blowing House, and Mr, Petherick, of Saint 



* For all these particulars I am indebted to Mr. J. D. Sheriff, C.E., 

 Engineer of the Cornwail and West Cornwall Railways. 



t To the 9th of May, 1869. 



X " During the past summer (1868) I have succeeded in proving that the 

 second felspar that occurs in the granites of Cornwall is albite. I found 

 this mineral as a constituent of the granite at Trewavas Head ; where it has 

 the following composition : — 



Silica 65-76 



Alumina 21-72 



Lime 0-89 



Magnesia trace 



g&da 9-23 



Potash 1-76 



Water 0-40 



99-76 

 B 3 



