Known as the Early Journal Content, this set of works include research articles, news, letters, and other writings published in more than 200 of the oldest leading academic journals. The works date from the mid--seventeenth to the early twentieth centuries. We encourage people to read and share the Early Journal Content openly and to tell others that this resource exists. People may post this content online or redistribute in any way for non--commercial purposes. Read more about Early Journal

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... ntent at http://about.jstor.org/participate--jstor/individuals/early-journal--content. JSTOR is a digital library of academic journals, books, and primary source objects. JSTOR helps people discover, use, and build upon a wide range of content through a powerful research and teaching platform, and preserves this content for future generations. JSTOR is part of ITHAKA, a not--for--profit organization that also includes Ithaka S+R and Portico. For more information about JSTOR, please contact support@jstor.org. S CIE tion of the moving body depends 'not at all on the direction of its motion.' But I may remark, that Routh (see Rigid dynamics, p. 192) has also given the subject a rigorous investigation by means of the equations of motion, and finds for the deviation to the right, in north latitude, two terms,-the one agreeing with the above, as found from the component about the vertical; and the other, a function of the cosine of the angle contained between the meridian and the line of projection of the moving body. J. E. HENDRICKS. Des Moines, Io., July 16, 1883. ALNWICK CASTLE ANTIQUITIES. A descriptive catalogue of antiquities, chiefly British, at Alnwick Castle. Printed for private distribution. Newcastle-upon-Tyne, 1880. 11+210 p., 43 pl. 4?. S CIE tion of the moving body depends 'not at all on the direction of its motion.' But I may remark, that Routh (see Rigid dynamics, p. 192) has also given the subject a rigorous investigation by means of the equations of motion, and finds for the deviation to the right, in north latitude, two terms,-the one agreeing with the above, as found from the component about the vertical; and the other, a function of the cosine of the angle contained between the meridian and the line of projection of the moving body. J. E. HENDRICKS. Des Moines, Io., July 16, 1883. ALNWICK CASTLE ANTIQUITIES. A descriptive catalogue of antiquities, chiefly British, at Alnwick Castle. Printed for private distribution. Newcastle-upon-Tyne, 1880. 11+210 p., 43 pl. 4?.