This is an announcement for chimera 1.70. Chimera is an X-based World-Wide Web browser for UNIX machines. Chimera uses the Athena widget set and a modified form of the NCSA HTML widget. Chimera supports forms, inline images, TERM, SOCKS, proxy servers, Gopher, FTP, HTTP, and local file accesses. Chimera can be extended using external programs. New protocols can easily be added and alternate image formats can be used for inline images (e.g. postscript, JPEG, ...). It is available for anonymous ftp at ftp.cs.unlv.edu in the directory /pub/chimera. Check out the URL https://www.unlv.edu/chimera/ for a partial list of mirrors and other information. The author and the contributors have compiled and run chimera 1.70 on i586 Linux-2.0.27-ELF and Linux-1.2.8-a.out, out of the box IBM RS/6000 AIX 3.2.5, out of the box SparcUltra2 SunOS 5.5.1 (Solaris), after bypassing xmkmf and adding -l's Sun Sparcstation ELC SunOS 4.1.1, needed some extra cc options IRIX 6.3 DEC UNIX 3.2