Corrections

July, page 75—the correct name of the manufacturer of the new plasma-monitoring system described in our New Products is Balzers.

July, page 47—the electrode reactions of the hydrogen–air fuel cell are incorrect because of a printing error; they should read

\begin{matrix} Anode & H_{2} → 2 H^{+} + 2 e^{-} \\ Cathode & 2 e^{-} + \frac{1}{2} O_{2} \to O^{-} \\ Net & H_{2} + \frac{1}{2} O_{2} \to H_{2} O \end{matrix}

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1982

American Institute of Physics

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