ftp://ftp.tug.org/texlive/Contents/live/texmf-dist/source/latex/  direct

[DIR]youngtab/  direct  90 twin directories
[DIR]york-thesis/  direct  96 twin directories
[DIR]yhmath/  direct  212+ twin directories
[DIR]yfonts/  direct  233+ twin directories
[DIR]yafoot/  direct  97 twin directories
[DIR]xtcapts/  direct  84 twin directories
[DIR]xtab/  direct  172 twin directories
[DIR]xskak/  direct  68 twin directories
[DIR]xpackages/  direct  61 twin directories
[DIR]xmpincl/  direct  86 twin directories
[DIR]xkeyval/  direct  200+ twin directories
[DIR]xfor/  direct  68 twin directories
[DIR]xdoc/  direct  390+ twin directories
[DIR]xcolor/  direct  246+ twin directories
[DIR]xargs/  direct  613+ twin directories
[DIR]wnri/  direct  155 twin directories
[DIR]wasysym/  direct  218+ twin directories
[DIR]was/  direct  218+ twin directories
[DIR]warpcol/  direct  96 twin directories
[DIR]warning/  direct  286+ twin directories
[DIR]vxu/  direct  66 twin directories
[DIR]vwcol/  direct  63 twin directories
[DIR]vrsion/  direct  104 twin directories
[DIR]volumes/  direct  150 twin directories
[DIR]vmargin/  direct  131 twin directories
[DIR]verse/  direct  786+ twin directories
[DIR]vector/  direct  788+ twin directories
[DIR]varindex/  direct  98 twin directories
[DIR]ushort/  direct  98 twin directories
[DIR]urlbst/  direct  121 twin directories
[DIR]upmethodology/  direct  69 twin directories
[DIR]unroman/  direct  69 twin directories
[DIR]unitsdef/  direct  82 twin directories
[DIR]units/  direct  4689+ twin directories
[DIR]undertilde/  direct  95 twin directories
[DIR]underlin/  direct  100 twin directories
[DIR]umoline/  direct  99 twin directories
[DIR]umlaute/  direct  272+ twin directories
[DIR]uml/  direct  1613+ twin directories
[DIR]ulsy/  direct  184 twin directories
[DIR]uiucthesis/  direct  96 twin directories
[DIR]uaclasses/  direct  95 twin directories
[DIR]typogrid/  direct  86 twin directories
[DIR]typedref/  direct  95 twin directories
[DIR]type1cm/  direct  149 twin directories
[DIR]twoup/  direct  101 twin directories
[DIR]turnstile/  direct  69 twin directories
[DIR]tugboat/  direct  363+ twin directories
[DIR]trsym/  direct  115 twin directories
[DIR]trivfloat/  direct  70 twin directories