Table 57. 



BRITISH UNITS. 



Cross sections and weights ol wires. 



This table gives the cross section and weights in British units of copper, iron, and brass wires of the diameters 

 given in the first column. For one tenth the diameter divide section and weights by loo. For ten times the 

 diameter multiply by loo, and so on. 



Smithsonian Tables. 



44 



