The histochemistry text of Professor Pearse has always been one of the classics for all morphologists interested in localizing chemical compounds or reactions at the cellular level. This is now the second volume of the third edition (the first volume appeared in 1968), and it continues in the traditions of excellence established by the first edition that was published in 1953. The book is continuously revised and improved by the author so that it is kept up to date. Drastic changes have indeed occurred in the 20 years that have elapsed between the appearance of the original edition and this new effort of Professor Pearse.
Volume 2, besides continuing the work on enzyme histochemistry, has some particularly interesting chapters on fluorescence microscopy, autoradiography, quantitative histochemistry, and electron histochemistry. As usual, each chapter has an abundant number of references for any investigator who wishes to study in detail a particular technique,