Six distinct and independent Colleges, each with a Dean and Faculty of its own. THIRTY SEVEN DEPARTMENTS. THIRTY DISTINCT COURSES. =AGRICULTURE, ARTS, LAW,= =ENGINEERING, PHARMACY,= =VETERINARY MEDICINE.= Superior facilities for education in Applied Science. Short or special courses for mature students not candidates for degrees. One hundred and twenty-one instructors. Over thirteen hundred students. FINEST GYMNASIUM IN THE WEST. _For further information address the President_, =DR. W. O. THOMPSON, STATE UNIVERSITY, COLUMBUS.= Ohio Forest Trees Identified by Leaves and Fruit. By W. A. KELLERMAN, PH. D., Ohio State University. A neat pamphlet for every one who wishes to learn our native forest trees. Keys simple Description plain. Can learn the names of the trees easily. Price reduced from 25 cents to 10 cents. Also, =The Fourth State Catalogue of Ohio Plants=. Bound copies at cost of binding, namely 20 cents. Gives list of scientific and common names; distribution by counties. Teachers and others will also be interested in Prof. Kellerman’s Phyto-theca or Herbarium Portfolio, _Practical Studies_ in Elementary Botany, _Elementary Botany_ with Spring Flora, all published by Eldredge & Bro., Philadelphia, to whom apply. For information or copies of _Forest Trees_ and _Catalogue_ or names of plant specimens of your region _address_ =W. A. KELLERMAN, COLUMBUS, OHIO= American Entomological Co. 1040 DE KALB AVENUE, BROOKLYN, N. Y. Lepidoptera Price List No. 2.—_Price 5 cents_ Refunded to Buyers ISSUED NOVEMBER 15th 1900. Dealers of all kinds of _ENTOMOLOGICAL SUPPLIES_ Manufacturers of the Original and Celebrated SCHMITT INSECT BOXES. _Builders of INSECT CABINETS, ETC._ The Twentieth Century Text Books of Biology. =PLANT RELATIONS, 12mo, cloth= =$1.10= =PLANT STRUCTURES, 12mo, cloth= =1.20= =PLANT STUDIES, 12mo, cloth= =1.20= =PLANTS, 12mo, cloth= =1.80= =ANALYTICAL KEY TO PLANTS, 12mo, flexible cloth= =.75= =All by JOHN MERLE COULTER, A. M., Ph. D., Head of Dept. of Botany, University of Chicago.= _They are already the preferred texts, and_ _the reasons will be apparent on examination._ ANIMAL LIFE: A First Book of Zoology.