binnig based on log scaled x axis

Hi,

I have some problem like follows. My task is plotting multicomponent
aerosol distribution on a log scaled x axis. I hope to keep "bin"
command easy to plot multicomponent aerosol distribution, and I also
want to plot on log scale particle diameter because aerosol size
spectrum very huge.

But if I set x axis as log scale, then each bin's width is distorted
following log scaled x axis. So I try to deleting current x axis, and
plotting only x-axis without changing the previous figure. I know I
can do this using XTickLabel. But I don't want to do this because
each bin's are not grid value such as 0.1, 1, 10, etc.

Even though I read many times help document, I couldn't solve this
problem. I hope somebody give me a hint.

Thank you,
JaeGun