i think the best install would be to nail them (no glue)make sure the moisture content is down to aprox 6%,and make sure the wood is in the rooms to be installed for seven days(minimum) at room temp,about 68*

confirm this with the people you purchased the wood from,(they may be aware of some special condition with the wood)

Carpetman,
I have never installed wood flooring at 6%. It should be with in a couple percent of the other woods in the building. Trim woods should be dried at the manufacturer/mill to about 6-7% but if I installed it that dry,there would definitely be problems because we have a humid climate here. I recommend stacking the flooring in the area to be it's home with air circulation around it for two weeks prior to installation to let it adjust. 11% is more common here. IO don't know where this will be going but unless it is in Arizona or a similar climate, 6% is the very bottom of the range. Setting a stipulation like that will make it nearly impossible to install in most places.

That said, I have worked with a lot of Anitque Heart Pine. If that is truely what is under discussion here, it is one of the most stable woods I know of, and there is little to worry about.

I agree that it should be nailed and not glued though, in most circumstances.

i'm sure you are correct.i live in the nevada high desert,and we allways get the wood to about 6%. i was not thinking of the humidty back east....thank you for passing on the correct information / carpetman