  Measurements of charged current neutrino and anti-neutrino nucleon
interactions in the CCFR detector are used to extract the structure functions,
F_2, xF_3(nu), xF_3(nubar) and R(longitudinal) in the kinematic region
0.01<x<0.6 and 1<Q^2<300 GeV^2. The new measurements of R in the x<0.1 region
provide a constraint on the level of the gluon distribution. The x and Q^2
dependence of R is compared with a QCD based fit to previous data. The CKM
matrix element |V_cs| is extracted from a combined analysis of xF_3 and dimuon
data.
