We strongly recommend that you read our Information for Contributors and Directions for Electronic Submission. During the submission process you will be asked to provide or transmit the following:

• Names and addresses, including email addresses, of all authors
• Names and addresses of five suggested reviewers if appropriate
• A Text version of the title and abstract (you can paste this in from your manuscript file)
• A text version of the cover letter. This should include a statement of the main point and relation of the paper to prior work, list of colleagues who have reviewed the paper, and future contact information of the corresponding author. We will ask you to paste this in as text. Please do not upload a "cover letter" file.
• File(s) containing the manuscript and figures. These must be in one of the following formats [and each must end in one of the following file extensions (e.g., smithtext.ps or smithfig1.eps)]:
  • pdf (portable document format)
  • ps (postscript)
  • eps (encapsulated postscript)
  • prn (print file to a postscript printer)
  • doc (Microsoft Word version 6 up to 2004 only. We cannot accept .docx files created in Word 2007)
  • wpd (WordPerfect) please save as version 6 or later
  All text, references, captions, and tables must be in one file only; figures, tables, and Supporting Online Material can be included also in this file (our preference) or sent as separate files, one for each complete figure. Files in other formats or that do not end with the appropriate file extension will not be accepted. The maximum size of all files should not exceed 7 MB.
• This form is for submission of Science manuscripts only. Supplemental material, such as related papers that are not yet published, can be sent as a PDF email attachment to science_editors@aaas.org or as hardcopies by mail to one of our editorial offices below. Please include your Web Submission ID, name and manuscript title as reference.