62 



Table 38. 

 METRIC UNITS. 



Orois sectlong and weigbts ol wires. 



This table gives the cross section and the weight in metric units of copper, iron, and brass \»ires of the diameters 

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

 diameter multiply by loo, and so on. 



Smithsonian Tables. 



