This volume includes two papers on purely helminthological topics, by Dr. Kearn and Drs. Bryant and Flockhart, two on more general parasitological subjects, by Dr. Gibbs and Dr. Clark, and one, by Dr. Riley, on that very interesting but too little known group of animals, the pentastomid “worms”. Thus we hope that the volume will contain material of interest to a wide range of parasitologists.