Hi,
It is probably not that important but It doesn't cost me anything to report it.
In chapter -3.9 Secondary Expansion- at paragraph 7:
It says SECONDARY EXPANSION, while the first time the manual is referring to the first one. (since the example shows how MAKE parses the first expansion and then the second one)
I hope I did not missunrestand anything.
It is always a pleasure trying to be useful.