I wrote just a second ago,

> "About thirty years ago there was much talk that geologists ought only to
> observe and not theorize; and I well remember saying that at this rate a
> might as well go into a gravel-pit and count the pebbles and describe the
> colors. How odd it is that anyone should see that all observation must be
for
> or against some view if it is to be of any service."

and mistyped the last sentence. In an attempt to keep the world safe for
logic and literacy, the last sentence should read:

"How odd it is that anyone should NOT see that all observation must be for or
against some view if it is to be of any service."

My apologies.

Wirt