The files are saved as Adobe Acrobat files. To download them:
Left-Click on the file of your choice to view it with Adobe Acrobat Reader immediately
Right-Click on the file of your choice to save it to your disk for viewing or printing later.
After the right click, use the menu option: "save link as" (Netscape) or "save target as" (Internet Explorer)
Either download method works, but the Right-Click method will probably be faster for both viewing and printing the entire document and you will have a copy of your own on your hard drive. Also, with the Right-Click method you can get several started on downloading, one after another, then you can do something else while the computer downloads all your selections.
To help you find articles of interest to you, the following categories have been established. Clicking on the category of your choice will take you to that group of articles: