1920s steel bridge repair consulting (MTA/MGH station)

Consulting work for a Boston civil engineering company on a 1920s-vintage steel structure with no ASTM spec. Tom's procedure: get drillings analyzed for composition + thickness, match against Stout & Doty's table of 200 steels, retrieve welding procedure. Used to teach that being-an-expert is sometimes just knowing where to look.

This is the fourth edition — this is like 1980. Bob Stout's passed away now, but in the back of this there are these tables that go on for about 40 pages that have about 200 different steels. What I gave you is the first page of this. There's an index that goes with it. When someone calls me up — I used to get these calls a couple times a year when I worked with a particular civil engineering company around here — let's say this was the same company that was rebuilding the MGH MTA station. They're rebuilding something that was built in the 1920s, and they say, Tom, we got a piece of steel, we got to weld to it, when we're doing this repair, what's the welding procedure?