The first edition of this volume appeared in 1929. In the intervening years there has been a greatly enhanced interest in medical history. It is only appropriate that pathology should share in this renascence, and it is gratifying that a selection of writings from the great pathologists should once more be readily available. In this second edition Dr. Long has greatly expanded the scope of the work. The first edition had offered selections ranging from Hippocrates to Virchow. The new edition extends the range over the intervening years, to the present. We meet, for example, Fitz, Welch, Theobald Smith, Mallory, MacCallum, Rous, Opie, Hektoen, and Whipple, among the thirty authors added since Virchow. For each author a brief but informative introduction precedes the selections. The entire collection offers a fine synoptic view of the problems that pathologists face over the course of history, the methods of medical scientists, of careful