r}')}}=\Delta^{(l)}
\delta^{(2)}({\bf r}-{\bf r}')$ and a similar one for the $f$-potential. The resulting glass transition due to such correlated defects $\parallel
{\bf B}$ is called in the literature the Bose-glass (BG) transition \[44\]. Assuming the BG transition to occur above $B_m(T)$, the $\delta V_{\bf
k}$-contribution to the vertex correction to the impurity line, carrying $\Delta^{(l)}$ in this case, in Fig.1 can be neglected, and the vertex correction consists only of the RPA term (a 3D version of eq.(2.7)). Then, $I_{\rm irr}$ is easily obtained in the lowest order in $\Delta^{(l)}$, and a BG-line results in. When $l_{ph}=\xi_0/\sqrt{\Gamma \mu}$ (the usual phase coherence length $\parallel {\bf B}$) $\gg d$, it is expressed as $$B_{\rm BG}(T) \simeq H_{c2}(0) {{\Delta^{(l)}} \over {(\theta_f(T))^2}}
(-\mu_0), \eqno(2.24)$$ which is linear in $T_{c0} - T$ near $T_{c0}$, as observed in ref.15. Since $B_m(T)$ (2.17) has a vanishing curvature near $T_{c0}$, one finds that the resistivities vanish on cooling [*continuously*]{} on $B_{\rm BG}(T)$ above $B_m(T)$ in $B <
B_{\rm lcp}^{(l)}$, where $$B_{\rm lcp}^{(l)} \simeq  {{(\Delta^{(l)})^3} \over {(\theta_f(T))^4}}
\, H_{c2}(0), \eqno(2.25)$$ increasing with reducing the fluctuation or enhancing the pinning. Accompanying this BG transition, not only the diagonal conductivities $\sigma_{xx}$ and $\sigma_{zz}$ but also the tilt modulus (the diamagnetic 