  We report that the conductance of macroscopic multiwall nanotube (MWNT)
bundles under pressure shows power laws in temperature and voltage, as
corresponding to a network of bulk-bulk connected Tomonaga-Luttinger Liquids
(LL). Contrary to individual MWNT, where the observed power laws are attributed
to Coulomb blockade, the measured ratio for the end and bulk obtained
exponents, ~2.4, can only be accounted for by LL theory. At temperatures
characteristic of interband separation, it increases due to thermal population
of the conducting sheets unoccupied bands.
