At the spot on Blackheath where the Subsidence which was 

 examined by the Association, occurred, a memorial plate has been 

 laid down by the Metropolitan Board of Works. The inscription 

 runs thus : — 



Subsidence Examined, 



Lewisham and Blackheath' 



Scientific Association, 



1881. 



The plate was placed there at the suggestion of Sir G. B. Airy, 

 and the cost was borne by the Board of "Works. 



