comparison. In this course use is made of the College collections, supplemented by the private collection of the Professor in charge.

GEOLOGY is studied in the first and second terms of the Senior year. A text-book is used, but each lesson is explained in advance and fully illustrated by the use of specimens, with which the College is abundantly supplied.

COURSE IN ELECTRICITY.

This course is similar to that in Engineering, Electrical subjects being substituted for Railroad Curves, Bridge-Building, Geodesy and Hydromechanics.

Its object is to prepare for electrical pursuits which do not demand, at the outset, a complete professional training.

The laboratory is provided with engines, dynamos, motors, and other apparatus needed for all sorts of measurement and testing.

Work in the laboratory is required throughout the Junior and Senior years, and consists of a course of experiments designed to familiarize the students with measuring apparatus while training them in careful quantitative operations. The Senior year is occupied in management and testing of electrical machinery, and it is customary to visit electric light and power plants to study industrial practice on its actual scale.

COURSE IN BIOLOGY.

While this course is introductory to medical and special biological studies, it is adapted to the purposes of a general education. Scientific and Classical students electing this course, and also Agricultural students, must divide the time nearly equally between three departments (Zoology, Botany, Entomology) during the Junior and Senior years, according to the following

Elective studies: These begin in the Junior year, as shown in the above schedule. For the number of hours, see the schedule for the "Course in Biology," on page 34. The work is mainly in the laboratory and is pursued by means of microscope and scalpel. The student sketches and describes the objects studied. Supplementary lectures are given. Each student provides himself with Parker's "Lessons in Elementary Biology" and a small case of instruments. Other apparatus, microscopes and materials are provided in the laboratory, for which a fee is required. The following subjects are studied in the order mentioned:

1. General Biology of the lower Plants.-Fall term, Junior year. Topics: Fermentation (Yeast), Fungi (Mucor, Penicillium), Bacteria, Algae (Pleurococcus, Hæmatococcus, Spirogyra), Chara, Moss, Fern, Alternation of Generations in higher Plants.

2. General Biology of the lower Invertebrates.-Fall term, Junior year. Topics: Protozoa (Amoeba, Vorticella, etc.), Colenterates (Hydra, Hydroids, Sponges), Vermes (Earthworm, etc.)

3. Zoology of the higher Invertebrates.-Winter term, Junior year. Topics: Echinoderms (Starfish, etc.), Molluscs (Oyster, Clam, Snail), Arthropods (Lobster and other Crustacea).

4. Anatomy (and Zoology) of the lower Vertebrates.-Fall term, Senior year. Topics: Fish, Frog, Turtle, Pigeon, Embryology of the Fowl.

5. Anatomy of the domesticated Mammals (Mammalian Morphology).—Winter term, Senior year. Dissection of Cat or Dog; Practical Histology.

BOTANY.-Laboratory study in Botany begins in the second term of the Junior year, and students then pursue a course in vegetable anatomy with the compound microscope, in which they are introduced to the various kinds of tissues and tissue systems as illustrated in the leaves, stems and roots of the higher plants. In the third term, laboratory practice is continued with the histology of the organs of reproduction, and the collecting of plants in the field begun. Each student prepares an herbarium of at least fifty species, all neatly mounted and fully labeled.

The Seniors, in their second term, have a course of lectures upon Vegetable Physiology, special attention being paid to the origin of varieties through cross-fertilization and other causes. In the laboratory, each member of the class becomes familiar, microscopically, with the histology of cryptogams, particularly those best enforcing the principles in Physiology considered in the class-room. The third term is specially devoted to a consideration of those low organisms that are so obscurely known under the general term of the fungus diseases of plants, and embracing one branch of Economic Botany, now called Vegetable Pathology.

ENTOMOLOGY.-In the third term of the Junior year, Entomology will be taught, chiefly by lectures and laboratory practice. Comstock's "Entomology" will be used as a text, and during this term a knowledge of the external and internal structure of insects and of their physiology will be given. Especial attention will be paid to the morphological and biological side of the science. In the Senior year an outline of the system of classification will be given by a study of leading types of all the orders, and the students will be required during laboratory hours to prepare, classify, and arrange collections, in part made by themselves. A very full collection of the insects of the United States will assist in acquainting the student with the family types. The aim will be to give such a knowledge of the subject as a whole, as will enable the student to specialize without further assistance should he desire to continue the study at the conclusion of the course.

EXTENSION DEPARTMENT.

The work of the Extension Department has been growing steadily since its inception. During the last year the attendance at the various courses exceeded 1,500, and more than 700 were enrolled in the accompanying classes. The work is conducted in strict accordance with the methods of "University Extension." A course of lecturestudies consists of the following elements :

(a) A series of lectures.

(b) A printed syllabus.

(c) A class-hour, or hour of conference following each lecture.
(d) Written exercises by members of the class.

(e) An examination open to those who have taken the whole course.
(ƒ) Appropriate credits issued to successful students.

Every part of this work is voluntary. Many simply attend the lectures and do not enroll themselves as students, but all are encouraged to take the full course, since a far better knowledge of the subject can thus be obtained. All courses consist of twelve lecturestudies unless otherwise specified. For the season of 1894-95 the following courses are offered, to which additions will be made later:

By Professor Edward B. Voorhees, A.M.

This series of lectures will include, under soils, a discussion of the origin, formation, and distribution of soils, their chemical composition, physical properties, relations to temperature, and soil-water, exhaustion, methods of improvement, tillage and drainage; and under crops, a discussion of the origin, habits of growth, composition, characteristics, methods of rotation, cultivation, management, and uses of the leading farm, orchard, and garden crops.

THE FOOD OF PLANTS, (6).

By Professor Edward B. Voorhees, A.M.

In these lectures will be discussed the constituents of plants, their sources and functions; farmyard and green manures, waste products and their composition, properties and uses of concentrated or artificial manures, the sources, composition, and uses of phosphatic, nitrogenous and potassic compounds; methods of manufacture of prepared fertilizers; considerable attention will also be given to economical methods of buying manures, the preparation of formulas, and the methods of application and use for the various crops.

ANIMAL NUTRITION, (6).

By Professor Edward B. Voorhees, A.M.

In these lectures the principles of nutrition will be discussed with particular reference to the formation of the various animal products. This will include a study of the composition of the animal body and its relation to food, the composition of fodders and feeds, their digestibility and proper use for the various animals, the relative value of natural and artificial grasses, the formation and improvement of permanent pastures, the buying of feeds and the preparation of rations, and the manural value of feeds. The principles of breeding, and the importance of pure breeds of domestic animals, and their relations to improved farming; breeds for the dairy, dairy management, the composition of milk and of the various dairy products, will also receive attention.

HOW CROPS GROW, (6).

By Professor Byron D. Halsted, Sc.D.

A course of lectures upon the structure and uses of the various organs of vegetation, together with a consideration of some of the more serious enemies to cultivated plants and methods of overcoming them; weeds, their habits, seeding capacity, and methods of treatment; dodders, and other parasites, rusts, mildews, smuts, blights, etc.; spraying trees and herbs with fungicides. These lectures are illustrated with the lantern and. by means of numerous wall-charts, maps, and the specimens themselves.

ECONOMIC ENTOMOLOGY, (6).

By Professor John B. Smith, Sc.D.

In this course only so much anatomy and physiology of insects will be given as to make intelligible the philosophy of the application of insecticides; transformation and reproduction of insects, injurious insects, insecticides; time of application; when remedial and when preventive; formulas; fertilizers as insecticides. These lectures will be illustrated by models and lantern slides.

APPLICATIONS OF THE PRINCIPLES OF PHYSICS, (6).

By Professor F. C. Van Dyck, Ph.D.

Introductory lecture on matter, force, work, energy, power; the mechanical powers, levers, pulleys, wheel and axle, inclined plane and screw; principles of water-supply, water-power, windmills, etc.; heating and ventilation; the steam engine and its applications; principles of electricity as applied to lightning protection, alarms and small power.

CONSTRUCTION OF ROADS, BRIDGES AND DRAINS, (6).

By Professor A. A. Titsworth, M.S., C.E.

Telford, Macadam and other roads in relation to local conditions, and cost of construction, illustrated by diagrams; economics of good roads; bridges on country roads, best and cheapest structures, sizes of timber; graphic