1. Earth Sciences: Re: Why is it that some of the highest land in NZ is made of seashell rock?, David Scarboro, Faculty, Earth Sciences, The Open University Sun Dec 3 12:54:56 2000
2. Botany: Re: How can anthocyanins be seperated from the solution of pigment extracted ?, David Hershey, Faculty, Botany, NA Sun Sep 2 21:47:26 2001
3. Environment & Ecology: Re: Is barometer more stable in Arizona? or the desert area., David Leonard, Flight Surgeon Fri Feb 2 13:15:02 2001
4. Botany: Re: Why do needles leave scars when they fall off the tree?, David Hershey, Faculty, Botany, NA Wed May 8 19:17:30 2002
5. Medicine: Re: What happens if an astro. develops appendicitis while in space?, David Leonard, Flight Surgeon Fri Jan 5 03:19:35 2001
6. Other: How do TV stations account for the change of clock for Daylight Savings? , David O'Neil, 10-12 Sun Aug 29 16:17:58 1999
7. Other: Re: Where do the trails on the condensation of the inside of a bottle come from, David Leonard, M.D., General Medicine, US Navy Thu Dec 28 22:45:21 2000
8. Physics: Re: Why is an airplane stable on the ground?, David Leonard, Flight Surgeon Thu Feb 8 20:37:57 2001
9. General Biology: Re: why do bananas go black in the fridge, David Hershey, Faculty, Botany, NA Sat Aug 18 00:17:19 2001
10. Botany: Re: Can Half the tree be alive and half be dead?, David Hershey, Faculty, Botany, NA Wed May 8 19:45:29 2002
11. Medicine: Re: Why do we get hiccups?, David Leonard, Flight Surgeon Thu Jan 18 20:34:45 2001
12. Botany: Re: When is a cell flaccid compared to turgid compared to plasmolysed?, David Hershey, Faculty, Botany, NA Tue Feb 10 15:02:42 2004
13. Medicine: Original David,Boy in Bubble, with SCIDS length of life outside of bubble? , Carol Leonard, 10-12 Tue Feb 15 16:24:43 2000