INTERNATIONALER ZEITSCHRIFTENSPIEGEL.

This article presents information about books related to diseases in plants. Some of the books are: "Pressure Apparatus for Injecting Chemicals Into Trees," by T.H. Filer Jr., and "Spray Inoculation of Slash Pine With Cronartium Fusiforme," by R.C. Hare. Some other books include "Qualitative and Quantitative Differences in Associations of Parasitic Fungus Species in Various Vegetation Units," by J. Kranz and R. Knapp, and "Method for the Study of Roots and Root Diseases Under Controlled Culture Conditions," by H.E. Nilsson.