This metal is found everywhere in nature but as it is never found free it is only in the last few years that it has been extracted in large quantities and cheaply enough to bring it into use.

It has a bright bluish white color nearly like that of tin and is the lightest common metal known.18 It does not tarnish either in dry or moist air; it is malleable and ductile and as easy to work as brass but it is very hard to solder but there are soldering compounds on the market by which it can be soldered. Aluminum can be bought19 in sheets of any thickness, or in rods or tubes of any size.

18 Aluminum when mixed with magnesium makes an alloy called magnaleum and this is lighter than aluminum alone.

19 Sold by the Aluminum Co. of America, 120 Broadway, N. Y.