The complete PostScript or PDF files of the manuscripts are welcome. Text and figures should be compressed, archived and encoded into a single file for submission. This is recommended even when the manuscript does not contain any additional files such as figures. Encoding reduces problems that email gateways tend to cause with text files such as TeX or PostScript. An accompanying message should list the files the manuscript consists of.
Some email programs allow a choice of the type of encoding for the attachments.
If the figures or parts of the manuscript is not available electronically, it is preferable to submit the complete paper, in its original printed form with the original figures by regular mail. I f authors wish, they may send the original and two copies to the Staff Editor and one copy directly to the Co-Editor who they believe would be responsible for their paper. Revised manuscripts should be accompanied by a summary of the changes made and a brief response to any criticism, the authors have not attempted to meet. It should be stated whether or not the figures were modified. The new version should be returned to the Editorial Office with copies to the Co-editor if explicitly asked for.