New data on carbon isotopic compositions of some ureilites

We have collected new C data from high resolution stepped combustion analyses of 5 ureilites to better constrain their relationships with O and mineralogical/petrographic groupings. This may help the future development of petrogenetic models

An integrated mineralogical, petrographic, light stable isotope and noble gas investigation of Sahara 99201 ureilite

New ureilite Sahara 99201 has been investigated to determine mineralogy, petrography, light stable isotopes and noble gases. The sample is a typical olivine pigeonite ureilite (Fo 78, Wo 10, En 72). C, N, O and Ar are consistent with other ureilites

Gone, With the Wind

Poem by Australian poet Ian C. Smit

Stranded

A poem by Ian C. Smith

Amnesty

Poetr

Essay on the Geography of Plants

Review of Essay on the Geography of Plants. Alexander von Humboldt and Aimé Bonpland. Edited and with an Introduction by Stephen T. Jackson. Translated by Sylvie Romanowski. 2009. University of Chicago Press, Chicago. Pp. 296, 1 color plate, 9 halftones, 7 tables, 1 poster. $45.00 (cloth). ISBN 9780226360669.</p