Re: test message #1

Tony Thompson

Speedwitch Media's Steam Era Freight Cars Reference Manual, Volume Two:  Tank Cars is darned good but all black and white.

Why do we call such photographs "black and white" when they are mostly shades of gray and little or no actual black or white?

   Put a strong loupe on those images, Gene. They most certainly ARE black dots, of varying sizes, on a white field. Your eye-brain connection blends them as gray.

Tony Thompson             Editor, Signature Press, Berkeley, CA
2906 Forest Ave., Berkeley, CA 94705
(510) 540-6538; fax, (510) 540-1937; e-mail, tony@...
Publishers of books on railroad history

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