Table 60. 



BRITISH AND METRIC UNITS. 



Cross sections and weights of wires. 



The cross section and the weight, in different units, of Platinum wire of the diameters given in the first column. 

 For one tenth tlie diameters divide sections and weights by loo. For ten times the diameter multiply by loo, 

 and so on. 



* Diameters and sections in terms of thousandths of a centimetre. 



Smithsonian Tables. 



50 



