Dear shipmates, you were promised and the 5th chapter, Pressure Hulls and Exostructures, is now available. http://www.nakkabr.hpg.ig.com.br/busbys/pg241.htm BUSBYMETER -> 36,37% (we're getting deeper... ;-) Jorge L. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.532 / Virus Database: 326 - Release Date: 27/10/03