This "collection" of papers will change as new letters are published. Our Letters editor is Ian Swainson. Submit a letter at https://aminsubmissions.msubmit.net -- Letters differ from regular papers in that they can be a maximum of fifteen double-spaced normal-margined, 12 point type pages, and count each figure and table as a page. They are to be justified as new research in the cover letter and the names of four possible reviewers supplied. On our side, we do everything possible to ensure rapid publication. Letters are designed to be a way to get a quick new hot bit of information into the Earth science community! Dr. Swainson is co-editor of the journal, working in conjunction with the other editors. Full manuscript preparation info is found at http://www.minsocam.org/MSA/AmMin/Instructions.html.