Subdirectories represent pages of ApJ, vol. 116
drwxr-xr-x 548 cats archive 12288 Mar 22 14:37 [Up] -rw-r--r-- 1 cats archive 48 Feb 21 2009 .message -rw-r--r-- 1 cats archive 20631 Jan 6 2009 datafile2.txt -rw-r--r-- 1 cats archive 16886 Jan 6 2009 datafile4.txt