RT Journal T1 A text-book of materia medica, pharmacology and therapeutics. JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1909 FD October 9 VO LIII IS 15 SP 1210 OP 1210 DO 10.1001/jama.1909.02550150066023 UL http://dx.doi.org/10.1001/jama.1909.02550150066023 AB This, the sixth edition of Dr. Butler's book, contains but few changes from and additions to the previous edition; those that have been made, however, add to its value. In the new edition we find grindelia classed as a "Motor Depressant," balsam of Peru under the "Aromatic Acids," tar and balsam of tolu as "Drugs Acting on the Respiratory Membranes," while buchu, uva ursi, juniper, copaiba, oil of santal, cubeb and sabal are found under "Drugs Acting Particularly on the Kidneys." In the previous edition all of these drugs were lumped together under the "Group of Aromatics Used Particularly to Stimulate the Mucous Membranes of the Genitourinary or Respiratory Tract." The new arrangement is obviously more rational. We also find that opium, which in the fifth edition was classed under "Hypnotics," is now found more correctly under the "Narcotics." A brief but clear-cut exposition on opsonins and vaccine therapy has