Information reported in Volumes 1 through 15 of WEEDS is presented in alphabetical order. Volumes 1, 2, and 3 were reviewed for appropriate entries; volumes 4 through 15 are represented by index entries listed in issue 4 of the respective volumes. Terminology currently in use has been used insofar as possible. The location of each subject as listed is indicated by the volume number before the hyphen and the specific page number thereafter.