UV absorption and circular dichroism measurements on light scattering biological specimens; fluorescent cell and related large-angle light detection techniques.

able for the more unusual geometries of some biological particles. Nevertheless, good approximations can often be made as demonstrated by the excellent results of Latimer and co-workers ~ in their scattering calculations for some highly complex turbid suspensions (yeast cells, chloroplasts, bacteria, etc.). The meaningful extension of circular diehroism and optical rotatory dispersion methods to a host of interesting biological structures now looks pronlising.