The spectra and spots of all the maser transitions detected toward the W51-North subregion in our VLA observation. For transitions of pure masers, the spectra are shown in colorful lines. The spectra of transitions mixed with maser and nonmasing components are shown in black, and their maser components are marked with gray bars. For maps of maser spots, the gray contours show the 1.3 mm continuum, with the start, step, and end levels to be 0.006, 0.012, and 0.023 Jy beam−1.