... of $T_\Sigma {\Cal M}_{g,2}^{(1)}$ onto the space of these operators where ${\Cal M}_{g,2}^{(1)}$ is the moduli space of Riemann surfaces with two marked points and fixed 1-jets of local coordinates at those points, $\Sigma\in {\Cal M}_{g,2}^{(1)}$ is the ...