374 Proceedings of the British Association for 1850. 



quently, when the arm or leg was amputated during embry- 

 onic existence, as not unfrequently happened from bands of 

 coagulable lymph, and the results of disease, the stump struc- 

 tures reproduced a small rudimentary hand or foot — as the 

 crab or lizard does. He shewed various casts and drawings 

 of cases of hands thus reproduced ; and two living examples 

 were exhibited. 



There was read an interesting memoir " On the laws regu- 

 lating the Development of Monstrosities," illustrated with 

 specimens, by Dr A. Wood. 



" Important Suggestions regarding the Expediency of 

 ascertaining the Extent to which Infantile Idiocy prevails 

 in Great Britain and Ireland generally, and of inquiry into 

 the causes of its Prevalence in certain Quarters, with a view 

 to the adoption of some means of deliverance from it,'' by 

 Dr Coldstream. 



Concluding General Meeting. 



MUSIC-HALL. 



The proceedings of the Association terminated by a Ge- 

 neral Meeting held in the Music Hall, on Wednesday the 

 7th of xiugust, at three o'clock, which was very numerously 

 attended, — Sir David Brewster in the chair. 



Dr Royle reported, in a very lucid manner, the transac- 

 tions of the General Committee, which were approved. 



Thanks to the Lord Provost and Magistrates of Edinburgh. 



Sir R. I. Murchison said, he rose with great pleasure to 

 move a resolution entrusted to him, viz., that the cordial 

 thanks of the British Association be given to the Lord Pro- 

 vost and Magistrates of Edinburgh. This Sir Roderick did 

 in his usual felicitous and animated manner. The distin- 

 guished Admiral Sir C. Malcolm said, it was a gratifying 

 task imposed on him, as a Scotchman, to second this motion. 



