Science is situated at Motofujichō, Hongō, and its approximate position is

Latitude, -- 35° 42′ 40".

Longitude, 9h 19m 48 East of Greenwich.

The instrumental equipment is as follows:

1st. An equatorial telescope of 8 inches aperture by Traughton and Simms of London, fitted with driving clock, fllar micrometer, double-image micrometer, and a good assortment of eye-pieces. This instrument has been recently loaned to the Observatory by the Surveying Bureau of the Interior Department, and will be set up in the dome of the Observatory as soon as the top of the dome can be rebuilt. In the meantime, in the workshop attached to the Observatory, are being made the neces sary adapters, counterpoises, &c., for attaching a small Browning spectroscope, and also a frame for a diffraction spectroscope, on which to use the collimating, and observ ing telescopes and the Rutherford gratings belonging to the spectrometer of the Physical Department. Also two photometers, which have been ordered of Alvan Clark and Sons of Cambridge, Mass., U. S. A., for the 5 inch equatorial, will be fitted to the 8 inch when they arrive.

2nd.-A 5 inch equatorial by Clark and Sons fitted with declination and hour circles and negative eye-pieces, but without clock-work or any other accessory apparatus. This stands at present in the dome, but is to be removed to make place for the 8 inch. As some observations of considerable value can be made with this telescope, it is desirable to remount it in a small dome on the ground near the main Observatory and adapt to it such apparauts

of the 8 inch telescope as can be employed to advantage on a 5 inch without clock-work.

3rd--A 4 inch telescope by Henry Fitz of New York, with an excellent set of negative eye-pieces, and mounted on a movable equatorial stand, the whole easily carried on the shoulder and set up temporarily anywhere out of doors.

4th. A small transit instrument of 2.5 inches aperture by Edward Kübel of Washington, which can also be used as a zenith-telescope for the determination of latitude. This is mounted on a stone pier in the transit-room east of the dome.

5th.-Four sextants (two of them new ones, the third in fair condition, and the fourth good for nothing for accurate measurement) and two artificial horizons.

6th.-A large chronograph by Dent of London, loaned by the Surveying Bureau. This is useless in its present condition, but, as it is the only chronograph avilable at at present for the use of the Observatory, an attempt will be made to make it useful as soon as the Director can get time to plan the changes in it. The Observatory very much needs three or four chronographs of the light American pattern.

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7th.-Four Negus break-circuit chronometers (3 siderial and 1 M. T.) and two Frodsham chronometers (1 siderial. and 1 M. T.), three of the Negus ones new and the others in fairly good condition.

8th.-A limited amount of electrical apparatus and battery material, of which much more is needed before all the instruments can be put in fairly good working ⚫ondition.

The workshop is busily employed in making small

changes in instruments, adapters for attaching apparatus to the telescopes, &c., &c., and much of the Director's time is required in planning the necessary work.

Rooms for a library, chronograph, chronometers and batteries, a lecture-room, studies for Professor and Assistant Professor, and a small store-room have been added to the buildings during the last year, so that all the work, theoretical and practical, can now be carried on at the Observatory.

The astronomical work during the past year has been confined to the instruction of the Astronomical, Physical, and Engineering Students, in the use of the transit, zenith-telescope and sextant in the determination of time and latitude, and a determination of the latitude by the zenith-telescope by one of the astronomical students, giving as the result for the latitude of the Observatory.

+35°42'89."92±0."17

A small prismatic transit of 75 mm. aperture to be used also as a zenith-telescope, has been ordered of Ertel & Sohn of München, and will be mounted some time during 1883 in a new transit room.

When the 8 inch equatorial is mounted and ready for use, it is expected that active work will be taken up on the sun, photometry of variable stars, observations of comets, occultations of stars by the moon and the eclipses of Jupiter's satellites, thus making good use of the isolated position of Japan with reference to other Observatories and securing valuable observations which would otherwise be lost.

XVI.-METEOROLOGICAL OBSERVATORY.,

The Meteorological Observatory of the Department of Science is situated at Motofujicho, Hongo. The instru ments in use are such as are ordinarily found in a meteorological observatory. Regular observations at fixed hours' in the day are maintained. Annual reports are published. containing tables of the observations with charts and diagrams exhibiting the meteorological phenomena for the year. In addition to this a monthly chart is published in the Gakugei-shirin and a weekly diagram in one of the English newspapers. All students of the Department of Physics have free access to this observatory for purposes of study or investigation.

XVII.-KOISHIKAWA SHOKUBUTSUYEN. (Koishikawa Botanical Garden

1.-The Botanical garden belonging to Tokio Daigaku is under the control of the Department of Science, and is designed for the use of the students of Tokio Daigaku and, the Yobimon, as the place for their practical work in Botany. Others also are allowed to visit the garden on complying with the following rules.

2. All persons desiring to visit the garden receive tickets of admission from the gate-keeper and are to return the same on leaving.

3. No horses, dogs, carriages, geta or hiyorigeta (Japanese shoes) are allowed in the garden. Straw sandals are provided instead of geta or hiyorigeta.

4.-Professors, teachers, or students of Tokio Daigaku or the Yobimon, who are connected with the department.

of Botany, may obtain at the office of Tokio Daigaku a special permit allowing them to pluck flowers, &c., for the purpose of practical study in Botany.

5.-Flowers and branches of plants or trees are not allowed to be plucked by visitors. This rule does not apply to those who bring a special permit approved by the officer of the garden.

6. From May 1st to September 30th, the garden is open daily from 8 a.m. till 5 p.m., and from October 1st to April 30th it is open from 9 a.m. till 4 p.m. Those who bring special permits may be admitted at other times. 7. The drinking of intoxicating liquors is not allowed in the garden.

XVIII.-EXPENSES.

1.-The necessary expenses of one student in the boarding house including the tuition fee, the cost of living, fire and light, are about six yen per month.

2.-The tuition fee of each student for one term is

four yen which must be paid to the treasurer of the University within twenty days from the beginning of each term The fee thus paid shall not be returned to any student in case of his absence or departure from the University, under any circumstances. Newly admitted students, other than students admitted from the Yobimon, are required to pay the fee within twenty days from the day of their admission.

3.--If any student is unable to pay the fee, he may be permitted to pay a half or quarter, or the fee may be altogether remitted, in case he applies for it.