In.-Inch (English); M-Meters; c/m-Centimeters; m/m-Millimeters; Lig.-Lignes (French); Kil.-Kilogrammes; Gr.-Grammes.

TENTHS OF M/M COMPARED WITH STUBS' WIRE GAUGE.

G-Gauge (Number on Stubs' Wire Gauge); V-Very; E—Easy;

T-Tight.

RULES TO FIND THE WEIGHT, PER FOOT RUN, OF STEEL BARS.

OCTAGON STEEL.

Breadth in 8ths, squared × 11

250

lbs. per foot run.

Ex.] Steel bar, octagon, breadth 1 inch = 8 eighths.

Ex.] Steel bar, 3-square, edge 1 inch = 8 eighths.