> I also learned that auto N02 always contains H2S which is a very toxic gas to humans. I wonder about bees. Have you considered the nitrous oxide chargers used in seltzer bottles? I assume they don't contain toxic additives. http://www.creamright.com/ *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm