I would like to thank Ronald for posting IMPORTANT safety issues concerning the handling of liquid nitrogen. I mentioned earlier in a post that it could be transported in a Thermos. The big issue that I did not discuss is you should provide a vent. Sealing a Thermos to transport liquid nitrogen could result in an explosive situation. You should bore a hole through the entire cap to provide a means for escape of the nitrogen gas. --- "BOGANSKY,RONALD J." <[log in to unmask]> wrote: > There are two major hazards associated with LIN ... __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/