Prompt shipments can be made from our large stock of United States and exotic insects of all orders. We also prepare 150 different metamorphoses of beneficial and injurious insects. Pupae now on hand are listed in circular No. 198. Other circulars and price lists free upon request. Ward's Natural Science Establishment 84-102 College Ave. Rochester, N. Y. ====================================================================== Entomological News A forty-eight page illustrated magazine, published monthly except August and September, devoted to the study of INSECT LIFE. It contains a list of the titles of the current Entomological Literature, and also articles by the leading Entomologists in the United States and Canada. Valuable information for the beginner, the economic entomologist and the systematist. To new subscribers, $1.90; Renewals, $2.00; payable in advance. Single copies 25 cents. Address ENTOMOLOGICAL NEWS 1900 Race Street, Philadelphia, Pa. ====================================================================== CLASS WORK MATERIAL CAN BE PROCURED AT ANY TIME OF THE YEAR FROM C. S. BRIMLEY, Zoologist 1135 Newberne Avenue RALEIGH, N. C., U. S. A. Twenty-one years' experience Price List on Application ====================================================================== The Journal of Parasitology A Quarterly Devoted to Medical Zoology This journal will be a medium for the prompt publication of briefer papers and research notes on animal parasites. Emphasis laid on the morphology, life history and biology of zooparasites and the relations of animals to disease. Subscription, $2.00 a Volume Managing Editor, HENRY B. WARD; Univ. Illinois, Urbana, Illinois ====================================================================== [Illustration: Do Business by Mail It's profitable, with accurate lists of prospects. Our catalogue contains vital information on Mail Advertising. Also prices and quantity on 6,000 national mailing lists, 99% guaranteed. Such as: War Material Mfrs. Wealthy Men Fly Paper Mfrs. Cheese Box Mfrs. Ice Mfrs. Foundries Shoe Retailers Doctors Farmers Tin Can Mfrs. Axle Grease Mfrs. Fish Hook Mfrs. Druggists Railroad Employees Feather Duster Mfrs. Auto Owners Contractors Hotels Write for this valuable reference book. Ross-Gould, 1027H Olive Street, St. Louis. Ross-Gould Mailing Lists St. Louis ] ====================================================================== Pomona College