Twin directories of jacal:

[DIR]  ftp://ftp.cs.pu.edu.tw/gnu/www/www.gnu.org/software/jacal/
[DIR]  ftp://ftp.thquast.de/mirror/ftp.de.debian.org/debian/pool/main/j/jacal/
[DIR]  ftp://ftp.andr.ru/pub/freebsd/ports/math/jacal/
[DIR]  ftp://ftp.int.ru/.1/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp2.sk.freebsd.org/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.esat.net/mirrors/.1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.gazi.edu.tr/mirrors/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/ports/math/jacal/
[DIR]  ftp://ftp.ural.ru/pub/mirrors/debian/pool/main/j/jacal/
[DIR]  ftp://ftp.unex.es/pub/gnu-beta/jacal/
[DIR]  ftp://ftp.br.debian.org/gnu/alpha/jacal/
[DIR]  ftp://aeneas.mit.edu/pub/gnu/jacal/
[DIR]  ftp://ftp.pucpr.br/debian/pool/main/j/jacal/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/-current/ports/math/jacal/
[DIR]  ftp://ftp.heitec.net/repo/ports/math/jacal/
[DIR]  ftp://ftp.ar.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.monash.edu/pub/linux/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.kaist.ac.kr/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp12.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp6.tw.freebsd.org/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.cse.buffalo.edu/mirror/BSD/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://208.209.50.19/pub/.vol02/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://na.mirror.garr.it/pub/0/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.at.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp2.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.cerias.purdue.edu/pub/os/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://ftp.funet.fi/.m/mirrors3/archive.ubuntu.com/pool/universe/j/jacal/
[DIR]  ftp://ftp.duth.gr/pub/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.uni-kassel.de/Mirrors/archive.ubuntu.com/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.gnome.org/mirror/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.cica.es/mirrors/Linux/ubuntu/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp-stud.fht-esslingen.de/pub/.3/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.li.kernel.org/pub/.3/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.uni-siegen.de/pub/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.lucky.net/pub/FreeBSD/development/FreeBSD-CVS/ports/math/jacal/
[DIR]  ftp://140.211.166.134/.1/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://64.50.236.52/.1/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://64.50.238.52/.1/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.cesnet.cz/.vol/archive.ubuntu.com/mirror/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://24.215.0.24/Ubuntu/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.tudelft.nl/d1/Linux/archive.ubuntu.com/pool/universe/j/jacal/
[DIR]  ftp://206.167.141.10/data4/pub/distro/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.ula.ve/linux/distribuciones/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.iitm.ac.in/linux/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.mn-linux.org/linux/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://mir1.ovh.net/lv0/ftp.ubuntu.com/ubuntu/pool/universe/j/jacal/
[DIR]  ftp://ftp.hosteurope.de/mirror/archive.ubuntu.com/pool/universe/j/jacal/
[DIR]  ftp://ftp.ecc.u-tokyo.ac.jp/mirror/archive.ubuntu.com/ubuntu/pool/universe/j/jacal/