74 A NEW OPERATING CHAIR. 



whilst using the fixed-back operating chair, in- 

 duces me to hope that others may derive similar 

 advantages. 



I would also avail myself of this opportunity to 

 introduce to the Society the name of Mr. Betjeman, 

 of No. 28, Oxford-street, to whose persevering in- 

 dustry I am mainly indebted for what is exhibited 

 to you this evening. Every gentleman present 

 will justly appreciate the services of that skilful 

 artisan, who, possessing an unusual amount of 

 mechanical ingenuity, has also acquired a great 

 facility for embodying any ideas which may be 

 given to him. 



