Absorption coefficients have been measured for bubble-free polycrystalline ice over the spectral region 400--1400 nm. In order to obtain an easily measurable attenuation at short wavelengths (400--500 nm), a 2.83 m block was used. The technique employed to grow large quantities of bubble-free ice is presented in detail. The absorption coefficients agree very well with previous results in the infrared and appear to provide greater accuracy and spectral detail at visible wavelengths.