If you want to install directly from your hard disk, download the "install from hard disk" version. If you want to install from floppies download "install from floppies" version and copy the two subdirectories: Disk1 and Disk2 to seperate floppies.
Evaporation Laboratory Software (to install from hard disk)
Evaporation Laboratory Software (to install from floppies)
Download the Evaporation Laboratory Manual
Download the Evaporation Laboratory Teacher's Guide