TRANSACTIONS OF THE AMERIGAN INSTITUTE. 987 



2d Group. Pumping machinery, steam fire engines, and other 

 engines for movins' fluids. 



3d Group. Machinery for working metals — lathes, planers, screw 

 cutting machinery, drills. 



4tila.Group. Machinery for working in wood — saws, planing ma- 

 chines, boring machines, machines for mortising and 

 tenoning. 



5th Ch'oujp. Machinery for preparing fibres and tissues, and ma- 

 chinery used in the manufacture of cloth. 



6th Group. Machinery and tools used in the manufacture of leather, 

 India rubber, porcelain, pottery, bricks, and mate- 

 rials used in the arts not before specified. 



7th Group. Gearing, millwork, and elements of machinery for 

 varying speed or power, and all tools used by arti- 

 sans or in factories not otherwise provided for. 



VI. — Department of Intercommunication. 



1st Group. Locomotive engines, cars, and all apparatus used in 

 constructing and operating railways, models of 

 bridges, etc. 



2d Group. Carriages, wagons, sleighs, and all vehicles drawn by 

 animal power ; harness, saddles, bridles, and all 

 apparatus used in connection with the horse and 

 the stable ; and all improvements connected with 

 common roads. 



3d Group. Models of vessels for navigating the ocean, rivers, 

 lakes and canals ; all apparatus connected with 

 building, propelling and steering vessels ; models 

 of locks, docks, aqueducts ; structures and imple- 

 ments used in navigation. 



4.ih. Group. Electric telegraphs, apparatus used in constructing 

 telegraph lines ; implements and contrivances used 

 in transporting and distributing mails ; package 

 express and implements connected therewith ; all 

 apparatus for giving signals and alarms, bells, etc. 



5th Group. Machinery, implements and materials used in printing 

 and engraving. 



6th Group. Implements for expediting trade, contrivances used in 

 the store and warehouse ; scales, safes, J^oisting 

 apparatus, shutters, vault lights, reflectors, and iron 

 columns. 



