Brown Shoe Earnings Drop 32 Percent  NEW YORK (Reuters) - Brown Shoe Co. Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=BWS.N target=/stocks/quickinfo/fullquote"&gt;BWS.N&lt;/A&gt; on  Wednesday posted a 32 percent drop in quarterly earnings, hurt  by slack sales from its children's unit, Bass wholesale  business and Naturalizer chain.