Jeff,I am merely trying to expand on the G/N hypothesis.There are many variations that should be considered.Regional differences should be looked at and thoroughly discussed,seasonal

Richard and all, You want more primary data? Look no farther than Larry Osterrich's efforts with (more UP) conductor's books. You also cited the Bieber interchange book, which was

Armand, It is not heresy to challenge the Gilbert-Nelson theory. Of course the usual STMFC rules apply (no personal attacks, etc.). Regards, -Jeff Aley Deputy Moderator,

Well, until someone finds analyses and presents that information, any answer is going to be purely speculative and probably not very helpful. I think Tim Gilbert would have been among the first to

Tony, My instructor at the local community college (Intro To PhotoShop and Digitizing) would deduct you 5-10 points on every project for not learning/using the pre-scan software (he made you print

EJ&E, DTI, BLE cars show up going through Bieber, CA, but not many. I estimate at < .5% -- Allen Rueter StLouis MO ________________________________ To: STMFC@... Sent: Sat, April 10,

Jerry, I think I pointed out before that a very reasonable approach is simply software simulation that makes car assignments based on the AAR rules laid down in every ORER. Take an imaginary fleet of

I actually went through a 1940 and a 1950 ORER and entered the totals by railroad/owner and AAR type in Excel spreadsheets. I can post them to the files page if anyone is interested. Jim

Brian Carlson wrote: Well stated, Brian, and in my opinion the burden of proof of an opinion to the contrary is on anyone who disagrees WITHOUT specific data. Tony Thompson

I hate to rekindle a dormant debate, but I'm in favor of revisitng the Gilbert and Nelson work on general service cars. I don't challenge the methodology or the conclusions of their original work.

I told myself all day, I was wasn't going to get drawn into this subject. However, I have to point out the ORER data tells us nothing about distribution. It a big hardcopy database of useful

Thanks for the lead. I will see if I can find a back issue on EBay. Tim Meyer

I agree with Ben and others who think the Gilbert-Nelson theory is the best approximation we have at present. More data might indeed give us different results, but where do we find the

Tim, agreed, but it seems that Armand was lobbying for a "larger sample" than perhaps had been done in the past. Dan Sweeney, Jr. Alexandria, VA

Al Kresset wrote: You are entirely right about the capability, Al, but aside from dust removal, most photo professionals feel Photoshop or equivalent software does a far better job than

Tony, Thanks for the good news. I will check this out. Bill Keene Irvine, CA [Non-text portions of this message have been removed]

Armand Premo wrote: The G-N hypothesis was only formulated to address free- running freight cars. In the steam era, box cars were the supreme example, followed by gondolas and flat cars.

Worked with Nikon CoolScans and Epson V700s.  Both have excellent pre-scan software.  Get it close in 14 bit data before it is saved in 8-bit software.  The CoolScan allows you to tweak or

Bill Keene wrote: Odd. Amazon and several web sellers have multiple models of Nikon Coolscan listed as new products. You mention the 4000 model, which may well be discontinued. My Coolscan is a

Tony, I believe that Nikon has exited the slide scanner business. Have not been making or selling scanners for about a year now. That $600 Coolscan 4000 model is going for well above a $Grand now on