The Federalist papers are available on-line via anonymous ftp.
Here are some of the sites that have them.

Host ftp.uu.net

    Location: /doc/literary/gutenberg/etext91
           FILE -rw-r--r--     441547  Dec 12 1991  feder15.txt.Z
    Location: /systems/ibmpc/msdos/simtel20/books
           FILE -rw-r--r--     467260  Jun 15 16:00  feder15.zip

Host isfs.kuis.kyoto-u.ac.jp

    Location: /mirrors/simtel20.msdos/books
           FILE -rw-rw-r--     467260  Jun 16 05:00  feder15.zip

Host nic.funet.fi

    Location: /pub/msdos/SIMTEL20-mirror/books
           FILE -rw-r--r--     467260  Jun 22 15:46  feder15.zip
    Location: /pub/msdos/magazines/books
           FILE -rw-r--r--     467260  Jun 22 15:46  feder15.zip

Host nic.switch.ch

    Location: /mirror/msdos/books
           FILE -rw-rw-r--     467260  Jun 15 22:00  feder15.zip

Host plaza.aarnet.edu.au

    Location: /micros/pc/oak/books
           FILE -r--r--r--     467260  Jun 15 20:00  feder15.zip
    Location: /micros/pc/simtel-20/books
           FILE -r--r--r--     467260  Jun 15 20:00  feder15.zip

Host quake.think.com

    Location: /pub/etext/1991
           FILE -rw-rw-rw-     467260  Jun 13 11:08  feder15.zip

Host rigel.acs.oakland.edu

    Location: /pub/msdos/books
           FILE -rw-r--r--     467260  Jun 15 20:00  feder15.zip

Host sun0.urz.uni-heidelberg.de

    Location: /pub/msdos/simtel/books
           FILE -rw-rw-r--     467260  Jun 15 20:00  feder15.zip

Host swdsrv.edvz.univie.ac.at

    Location: /pc/dos/books
           FILE -rw-r--r--     467260  Jun 15 19:00  feder15.zip

Host tupac-amaru.informatik.rwth-aachen.de

    Location: /pub/rz.archiv/simtel/msdos/books
           FILE -rwxr-xr-x     467260  Jul  8 14:16  feder15.zip

Host wuarchive.wustl.edu

    Location: /mirrors/msdos/books
           FILE -rw-rw-r--     467260  Jun 15 19:00  feder15.zip