By WM. A. RILEY, Ph. D., Professor of Insect Morphology and Parasitology in Cornell University and O. A. JOHANNSEN, Ph. D., Professor of Biology in Cornell University.

A concise account of poisonous, and disease-carrying insects and their allies, including descriptions and illustrations of the principal species, with keys for their determination, and method of control. Bound Library Buckram, medium 8vo. Nearly 375 pages. Price $2.00 net.

Journal of Entomology and Zoology — Part 10

=The Comstock Publishing Company= =Cornell Heights, Ithaca, N. Y.=

Journal of Entomology and Zoology — Part 10

[Illustration: _Odontolabis wollastoni, Java_]

Journal of Entomology and Zoology — Part 10

We are able at last to offer our customers an all glass mount that we believe comes nearer to meeting the requirements of museums and private collectors than any previously put on the market.

No cut can properly show this mount, which must be seen to be appreciated. Write for Circular 192, which describes fully what we are offering.

When in need of Entomological supplies remember that we have the best insect pins on the market and that our hand made Schmitt insect boxes with three ply tops and bottoms are unsurpassed. Catalogue No. 33 free on application.

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.=

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.

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

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.