New Results on Jet Fragmentation Phenomena at CDF at the Tevatron

New results from jet fragmentation studies at the Tevatron are presented: distributions of 
transverse $k_T$-momenta of particles in jets, two-particle momentum correlations, particle 
multiplicity fluctuations, and a number of global event shape observables. The results are 
discussed in the context of the recent NLL calculations as well as the earlier experimental results 
from the Tevatron and $e^+e^-$ colliders.