[basil]

I haven't been able to find the provision that was written when Texas became part of the union, which states that the two flags will fly at the same height--(I'm still looking).

I did find this, though:

(i) No flag or pennant other than the United States flag should be placed above or, if on the same level, to the state flag's right, that is, the observer's left. When the state and United States flags are displayed at the same time, they should be flown on flagpoles of the same height, and the flags should be of approximately equal size.

Here is the link:

Lone Star

[McLynnan]

Snopes.com debunks the Texas flag myth with links to references. Tried to make a link, failed, cut and paste broken too. Go to Snopes.com and put "Texas Flag" in the search field.