At 11:25 PM 23/05/97 -0800, you wrote: >Just out of curiosity, have any one of you ever read, or "guestimated" on >the total tonnage of meteoric material on Earth? Jeanne, The one figure which is known is that between 35,000 and 100,000 tons of interplanetary dust particles reins down on Earth each year. No wonder our house is always so dirty :-) Joel Schiff