Transmission spectrum of HAT-P-32b derived from the MODS transit measurement. Upper panel: the transmission spectrum of this work (black) is compared to the derived spectrum of G13 (red). Overplotted in green is the best fit of a linear function over wavelength. The horizontal dashed lines indicate three pressure scale heights of the planetary atmosphere. Lower panel: our spectrum is overplotted with a cloud-free solar-composition model of 1750 K (blue line), a cloud-free solar composition model of 1750 K without TiO (green line), a solar composition model of 1750 K including H2 Rayleigh scattering increased by a factor of 100 (red line), and a best-fit Rayleigh scattering slope of 890 K (magenta line).