by W,RUHLAND.
by K KRAAMER.
by H,F LINSKENS.
by A,LAUCHLI.
by H F LINSKENS AND J F JACKSON.
by W BEERMANN.
by O BRAITSCH.
by H URSPRUNG.
by MANFRED KLUGE IRWIN P THING.
by K H WEDEPOHAL.
by H H WEBER.
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