MISCELLANEOUS NOTICES.

M. F. W. STRUVE, the world-renowned Russian astronomer, died on the 23rd of last November. It is but a short time ago that we noticed the meeting to celebrate the twenty-fifth anniversary of the Central Observatory at Pulkova, at which he was present, although failing health had compelled him to retire for the last three or four years from the active duties of his office of Director. His son, M. Otto Struve, was appointed his successor in the course of last

year.

PROFESSOR SILLIMAN, well known to the scientific world as conductor of the journal bearing his name, died at New York within the last month at the advanced age of eighty-five.

LIST OF SUBSCRIBERS.

NAMES RECEIVED SINCE OUR LAST NUMBER.

Burlingham, R. Esq., Lansdowne, Evesham.

Gay, John, Esq., Belle Vue, Hampstead.

Jones, Rev. E., Vicarage, West Peckham, near Maidstone.

Berwick, Rt. Hon. Judge.

Dow, E. Esq., Manchester.

Meltzer, O. É. H. Esq., Millbrook Cottage, Loughborough Road,

ASTRONOMICAL REGISTER.-Subscriptions received for the year 1864

-the Editor's list.

INSTRUMENTS, &c. FOR SALE.

These Notices, which are restricted to three lines each, are inserted free of charge to subscribers; applications respecting prices and other particulars to be made to the Editor, with a stamped envelope for reply, without which no answer can be sent. -For Advertisements with prices and more complete details, a small charge will be made.

[3]

Equatoreal Telescope, 5 ft. focus, 4 in. aperture; powers 60, 340, and 450, on extra stout mahogany tripod stand, steadyingrods, levels, large finder, &c., complete. [18] Achromatic Telescope, 5 ft. focus, 7 in. aperture, Equatoreally mounted on strong garden tripod, with eye-pieces, &c., complete, price low. [41] Achromatic Refractor, 46 in. focus, 3 in. clear aperture, by Dollond, on extra stout tripod stand, with steadying-rods, finder, &c., in case, complete. [ 40 ] Astronomical Refractor, focal length 4 ft. aperture 38 inches, complete on a Portable Universal Equatoreal Stand. Achromatic Refractor, 44 in. focus, 31⁄2 in. aperture, on a Fraunhofer's Universal Equatoreal Stand. [7] Achromatic Refractor, 4 ft. 6 in. focal length, 3 in. aperture, by T. Cooke & Sons, Equatoreally mounted, on tripod stand. [ 36 ] Achromatic Refractor, 4 ft. focal length, 3 in. aperture, on brass tripod stand, with achromatic finder, 3 celestial and 3 terrestrial eye-pieces, &c. [20] Achromatic Refractor, 40 in. focal length, 2 in. aperture, by T. Cooke & Sons, on stout tripod stand. Newtonian Reflector, 7 ft focus, 7 in. aperture, 8 eye-pieces, powers from 30 to 360, Equatoreally mounted.

[45]

II

[29]

Transit Instrument, 5 ft. focus, 3 in. aperture, Ys fitted with agates, for mounting on stone piers. Equatoreal Mounting (for Latitude 51 or 52), adapted for a telescope of 6 or 7 ft. focus.-12 inch Circles, Driving_apparatus, &c., all of the most approved construction.

[5]

Improved Varley Stand, with rack work movements, adapted for a telescope of or 6 ft. focus: fixed upon a circular turn-table, so as to be easily pointed in any direction.

[16]

Astronomical Observatory, built of wood, 16 ft. by 8 ft., adapted for Equatoreal, Transit, and Clock; could be easily removed. Price moderate.

[38]

Recreative Science: complete in numbers, half price. [30]

Star Maps. The Large Maps of the S.D.U.K., strongly and neatly bound in whole cloth; very nearly new. [42] Barometer, by Negretti and Zambra, 0'45 in. bore, quite equal to new, at five-eighths of its cost. [44]

TELES

'ELESCOPE FOR SALE.-One of Messrs. SOLOMON'S £5 ASTRONOMICAL REFRACTING TELESCOPES to be SOLD, nearly new. Focal length 44 in., clear aperture 23. Price Four Guineas, with terrestrial eye-piece, table tripod stand, and box, complete. [31] H

FOR SALE

-an excellent REFLECTING TELESCOPE, focal length 7 ft., aperture 7 inches, mounted so far Equatoreally that with a little care it may be turned on a star or planet in the day-time. -Four eye-pieces.-Price £20 only (less than the cost of the stand), the proprietor having mounted a larger instrument. [11] F

A CHROMATIC TELESCOPE FOR SALE, 10 ft. focal length, 6 in. clear aperture, by Goddard, with finder of 2 in. aperture, six eye-pieces, powers from 20 to 1,000, mounted on a mahogany stand upon a new and improved principle.-Apply to Mr. S. Corke, Auctioneer, &c., Sevenoaks, Kent.

TEL

'ELESCOPE FOR SALE.--5 ft. achromatic, 3 in. aperture.-Equatoreally mounted on strong tripod stand. Dewcap, finder,` movable counterpoises, eye-pieces to 220, &c. Price only £13 138. The observatory space being needed immediately for another instru

ment.

INSTRUMENTS, &c. WANTED.

[ 41 ] I

Equatorial Mounting Wanted for a 6 or 7 ft. Telescope, with or without graduated circles, cheap.

[43]

Equatorial Stand Wanted-adapted for a 5 ft. Refractor, with graduated circles; second-hand, at a moderate price. [35] Monthly Notices of the Royal Astronomical Society. - The third volume wanted: a good price will be given. [26]

NOTICES TO CORRESPONDENTS.

We have to acknowledge the receipt of Adm. Smyth's "Sidereal Chromatics."

Communications from W. M., Cassander, and some others, in our

next.

We are still unable to find space for the conclusion of the notice of the Hartwell Observatory; other articles are also deferred for the same reason.

The Astronomical Register is intended to appear at the commencement of each month: the Subscription (including Postage) is fixed at Three Shillings per Quarter, payable in advance, by postage stamps or otherwise.

The pages of THE ASTRONOMICAL REGISTER are open to all suitable communications. Letters, Articles for insertion, &c., to be sent to the Editor, Mr. S. GORTON, Stamford Villa, Downs Road, Clapton, N.E., not later than the 15th of the month.

The Astronomical Register.

No. 26.

FEBRUARY.

1865.

THE BRITISH ASSOCIATION.

We resume our abstracts of the Astronomical Papers read at the Meeting of the Association in September last.

The paper by Dr. Lee, On a Lunar Plain West of the Montes Hercynii, described it as a large plain in the NE. quadrant of the moon, which had formerly been designated "Lichtenberg" by the Hanoverian astronomer Schröter. It is situated between two mountain chains, to the easternmost of which the German selenographers Beer and Mädler appropriated the term "Montes Hercynii," at the same time transferring the name "Lichtenberg" to a crater some little distance from this plain. Dr. Lee illustrated his description of the plain and its surrounding mountains by four drawings: one by Schröter in the year 1792; the portion of Beer and Mädler's map of this region, date 1834; a fine drawing by Lord Rosse in 1861; and a sketch (unpublished) by Mr. Birt, date 1864. To these may be added the portion of Lohrmann's map which in some respects differs from the delineations above mentioned. The author pointed out the features that were common to the four drawings, especially a large crater on the north part of the west wall, which is very conspicuous in the four, and also on Lohrmann's map. He also pointed out craters which are conspicuously shown in Schröter's, Lord Rosse's, and Mr. Birt's drawings, but which are not apparent in Beer and