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New York Times (1923-Currentfile); Jul 25, 1945;
ProQuest Historical Newspapers: The New York Times (1851?2008) with Index (1851?1993)

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.. . adding to the nation?s fuel supply

In the western end of the Panther Valley there is a the top as froth. Skimmed 0H and dried, it becomes
coal preparation plant like no other in all the marketable anthracite.
world. It is of?cially known as the Froth Flotation Modern science has achieved two objects in this
Plant of the Lchigh Navigation Coal Company. plant. One is the puri?cation of streams; the other

In this plant you win see a series of tanks is the reclamation of useful fuel which, for more
whose churning waters are covered with black froth. than a hundred years. was considered waste. The
That froth is coal?pure, clean anthracite which whole process is typical of the scienti?c moderniza-
formerly was discharged into streams as waste or tion by the aid of which anthracite production in
lay in useless eulm banks, Now it is recovered and the Panther Valley has been increased 14-0 per cent,
becomes valuable fuel for industrial power. more than doubled. in the last 7 years-

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The froth process is an interesting one. After go-
ing through the settling basins shown in the picture The Lehigh Navigation Coal Company Inc., which

above, the minute particles of clean coal are sep- operates the Panther Valley mines and collieries, is
stated from iInpurities by agitating the mixture of a wholly-owned subsidiary of this Company. It is
?ne solids and water with air and with small quan- one of a group of enterprises, so owned, which are
tities of pine oil. During the agitation, the bubbles notable for the ef?ciency and usdulness of their
formed act as carriers for the coal and ?oat it til services to the public.

The Lehigh Coal and Navigation Company