Of the committee on the thirteenth exhibition of American manufactures, held in Philadelphia from the 17th to the 28th of October, 1843, by the Franklin Institute of the state of Pennsylvania, for the promotion of the mehanic arts

1844 Journal of the Franklin Institute  
doi:10.1016/s0016-0032(44)90446-1 fatcat:425pqh7pirbgrhdi7sxsqpsuzq