APPENDIX 



TO THE PAPER 



ON THI 



CHAIN BRIDGE AT BROUGHTON, 



(See Page 384,) 



BY THE AUTHOR. 



J. HIS bridge, since the paper on it in the 

 present volume was printed off, has unfortunately 

 broken down; the failure however may afford 

 very useful instruction to future Architects. 



A full account of the circumstances appeared at 

 the time (April last), in the Manchester Guardian 

 and Chronicle Newspapers, and was copied from 

 them, chiefly from the former, into the Philoso- 

 phical Magazine for May : still it may not be 

 improper in this place to give a short account 

 of the fracture and its cause, with some remarks 

 on the structure of the main chain, (in the 

 extremity of which under ground the fracture 

 took place) ; referring for other details to the 

 able account in the Magazine. 



3 z 



