Abstract Many forestry researches involve the collection and study of increment cores. At best this is a tedious and time-consuming task. Naturally enough, considerable thought has been given to expedite the work, and several instruments have been devised for slicing and measuring increment cores. These instruments, however, have not been found to be entirely satisfactory when the springwood and summerwood are hard to distinguish. The following article describes an instrument for holding cores both for cutting and for viewing them by either transmitted or reflected light. This instrument should find wide use in forestry research.
L. H. Reineke (Sat,) studied this question.