Flying? Take a train.(see 'Runaway competition', Down To Earth, October 15, 2005)..a.c.D B N Murthy.dbnvimi@hotmail.com.Oil's not well. (see 'A joke we've played on ourselves' Down To Earth, September 30, 2005),.Bhamy Shenoy. bhamysuman@hotmail.com.J W Lane.www.jwlaneillustrator.com.Science News.usa.co.2.co.2.co.2.ysrke@yahoo.co.uk.nasa.Our own anti-diabetic.(see 'Export controversy', Down To Earth, September 15, 2005)..Pterocarpus marsupium.Lakshmi Bhargava.lakshmi.bhargava@rediffmail.com.Let's have a Farmer's Day.(see 'Profit from an acre', Down To Earth, September 15, 2005). sljnayak@yahoo.co.in.Coreection.peste des petits ruminants.ppr.ivri.(see 'India develops ppr Vaccine, Down To Earth, July 31, 2005)..ivri.tanuvas.tanuvas.M P Yadav.Director, Indian Veterinary Research InstituteIzatnagar.Pick of the postbag.Congratulations!.'What Dubey did' (Down To Earth, August 31, 2005).r.d.cbri.Y Singh.ysrke@yahoo.co.uk.Down To Earth .Mohana Kumar.drysmk@sanchar.net.Down to Earth Replies.Comparative Immunology, Microbiology & Infectious Diseases.editor@downtoearth.org.in