A method for quantitative histological evaluation of neural cell populations.

In an attempt to facilitate quantitative analysis of neural perikarya, an inexpensive system of gridded coverslips has been developed to permanently map sections of tissue on microscopic slides. Utilizing common photographic copying techniques with Kodalith film, a mylar coverslip is produced which is imprinted with a grid of known dimensions. The exact scale of the grid can be varied precisely for compatibility with a particular field of magnification. The versatility and economy of this technique make it useful in many microscopic studies requiring superimposition of discrete landmarks.