Proceedings pdfs, whether of individual articles or of the entire Proceedings, are only available to current SDHS members. Thus you will be asked to login before viewing or downloading one of these pdfs.
At present, the required username and password are different from your SDHS member username and password. They are shown on an SDHS members-only
Please follow the above link—logging into the SDHS site if you aren't already logged in there— and make note of the required username and password that you can use to access pdfs via the 2010 Proceedings page .