80 



severance and enterprise, attained to so high a degree of perfec- 

 tion in their art. The construction of the teeth and gums in 

 one entire piece, is an improvement in dentistry plainly shown 

 by the beautiful specimens in this collection. The great strength 

 required to withstand the action of mastication is here pro- 

 duced by the teeth and gums being carved in one entire piece, 

 without seam or joint, and doubly securing them by soldering 

 and also fusing them to the plate upon which they are set, at 

 the same time leaving no space under or around the base of the 

 teeth for the lodgment of food to become vitiated, as in the 

 old style, but rendering them easily kept in the most cleanly 

 condition. 



The gum is constructed upon the inside of the teeth as well 

 as the outside, giving to the work a beautiful life-like appear- 

 ance, and also a natural form for the tongue to play upon, so 

 as to produce distinct enunciation. 

 To Asher Green, of Fitchburg, for a Patent Revolv- 

 ing Last Holder, manufactured at his foundry, 2 00 



This machine is made wholly of cast iron. It is simple in 

 its operation, not expensive, and requires no more room than 

 the ordinary bench. It is so constructed as to enable the 

 workman to stand or sit, and firmly holds the last in any and 

 every position required for any size or kind of work, either 

 pegged or sewed. The last need not be removed, until the 

 shoe or boot is completed. By means of this machine, the 

 workman saves all the strength required to hold the work 

 while bottoming, which is the greatest part of the actual labor 

 of boot and shoe making. It enables him also to avoid that 

 cramped and unhealthy position which is yearly ruining the 

 health of thousands. 



As there is no strap used, and the mere touch of a spring 

 fastens or removes the last at pleasure, much time is saved ; 

 and as every required tool can be used in trimming, setting up 

 the edge, and finishing, while the work is in the machine, it 

 can be done much quicker and with greater ease than by the 

 ordinary method. In short, the machine is a perfect shoema- 

 ker's vise. 



