Do you see any problem with "Lyceum" events occurring in a Town Hall?
From it's description the Melrose Town Hall was designed for just such
events.  There does not seem to be any physical location referred to as
a Lyceum (not since 1870 when one burned down).  I don't have any solid
evidence that links the Town Hall with the Twain-Cable tour but it does
have a good fit.

On Thu, 2015-03-05 at 12:59 -0600, Martin Zehr wrote:
> I believe the term "Lyceum" referred to the specific site and to the
> circuit lectures and presentations sponsored by agents like James Redpath,
> an early agent for Twain.  Like the term Chautauqua, it refers to a type of
> presentation, (Chautauquas were originally open-air) and a specific cite-
> Lake Chautauqua, in southwestern New York, near the Pennsylvania border.
> Martin Zehr
>