Taylor & Francis, Ltd. and Association of American Geographers are collaborating with JSTOR to digitize, preserve and extend access to Annals of the Association of American Geographers. http://www.jstor.org Cattle and Sheep from Old to New Spain: Historical Antecedents Author(s): Karl W. Butzer Source: Annals of the Association of American Geographers, Vol. 78, No. 1 (Mar., 1988), pp. 29-56 Published by: on behalf of the Taylor & Francis, Ltd. Association of American Geographers Stable URL: http://www.jstor.org/stable/2563439 Accessed: 13-03-2015 20:58 UTC Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. This content downloaded from 128.62.59.252 on Fri, 13 Mar 2015 20:58:09 UTC All use subject to JSTOR Terms and Conditions