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Eros Observations at Chamberlin Observatory, University Park, Col.-Professor H. A. Howe, director of Chamberlin Observatory of the Denver University, reports that forty micrometrical measures of Aa and the same number of Ad are made each clear week night, between Eros and one or more faint companion stars; the observations are divided into two sets, separated by an interval of about one hour, during which Professor Chas. J. Ling connects Eros with two catalogued stars. One of the companion stars is also related certainly to a companion star. Occasionally companion stars are as faint as the 12th magnitude, because no brighter stars are available. Twenty-three nights have been so utilized at Chamberlin Observatory, an excellent start in the parallax work on Eros.

Laying the Corner Stone of the New Allegheny Observatory. -The corner stone of the new Allegheny Observatory was laid October 20, 1900, with appropriate ceremonies. A large audience gathered at Riverside Park, in Allegheny on that occasion which, for some time previously had been in anticipation, in view of its novel and interesting character. During the exercises of this occasion some facts came out that are especially worthy of notice, in relation to the new Observatory and the astronomical work to be pursued by it in the future. The new building is to cost about $110,000. The material is to be of chiseled granite. The edifice will be over 200 feet long by about 100 feet wide, which will be surmounted at the ends by domes in which the telescopes will be placed.

J. A. Brashear, the head of the well-known firm of makers of optical instruments at Allegheny presided on this occasion and Dr. W. J. Holland, ex-chancellor of the University of Western Pennsylvania made a brief address. Among other apt things he said: “A few weeks ago I was in Italy and met there a British officer. I told him I came from Allegheny. He thought a moment, scratched his head, and said, 'Oh, yes! I know Allegheny; it has a fine Observatory—and by the way isn't there a town called Pittsburg near it?' So you see, the fame of the Allegheny Observatory has spread, and now that we are to have a finer and better one, the world will be brought closer in contact with the little city of Allegheny." Next followed the chief part of the programme, the historical address by Mr. J. A. Brashear. It is elsewhere printed in full in this number. It was a masterful, apt, fitting and eloquent setting forth of the merits of the theme most dear to his heart. The right man was chosen for this task, and he performed it right royally.

At the close of this address Mr. Brashear deposited the copper box in the niche prepared for it and the great corner stone was lowered to its place. As Mr. Brashear stood upon it he fittingly announced the names of a long list of donors who have made the existence of the new Allegheny Observatory possible. All lovers of astronomy will want to see these names. They follow:

C. G. Hussey, Thomas M. Howe, William Thaw, Mary Thaw, Elizabeth Thaw, J. H. Cooper, H. Childs, W. McClintock, Robert Robb, J. M. Pennock, Felix R. Brunot, W. S. Howe, G. W. Cass, James Park, Jr., B. L. Fahnestock, C. Yeager, D. McCandless, John Dean, W. Bagaley, H. Harper, J. B. Legget, James Patton, Matthew Ferguson, James McCandless, Josiah King, Charles H. Pantser, Alex. Speer, William McKnight, Thompson Bell, J. H. Shoenberger, James Dalzell, O. P. Scaife, W. Dilworth, Isaac Jones, A. Garrison, Laird Campbell, George A. Berry, John A. Wilson, William Wilkins, R. B. Sterling, Joseph Smith, C. W. Ricketson, R. Ashworth, B. Bakewell, R. S. Hays, William Morrison, Henry

Irwin, Louis Jones, W. S. Bissell, B. F. Bakewell, Samuel Gromerly, William Walker, Hay Walker, James A. Wright, N. Holmes, William McCully & Co., A. L. Bollman, J. B. Jackson, Mrs. A. Cosgrove, J. S. Cosgrove, C. Rahm, L. O. Livingstone, James Marshall, J. McD. Crossan and W. F. Johnston.

At the conclusion the spectators were taken all over the basement of the new building and everything was explained to them by Mr. Brashear.

The New Allegheny Observatory.-By kindness of Mr. Brashear and Professor F. L. O. Wadsworth, director of the Allegheny Observatory, we have the privilege of presenting to our readers a view of the new Allegheny Observatory, as photographed from the perspective made by the architect. It is the frontispiece to this number.

The corner stone referred to above was really the cap-stone of the first story, and $22,000 has already been expended in this first story which is to contain the laboratories. The work is now going on for the second story of the building. The outside will be finished in light cream-colored brick and terra-cotta. The dome over the columns will have the 13-inch telescope of the old Observatory mounted in it, and this is to be forever free to students of all educational institutions and to the public under suitable regulations. The great dome will contain the 30-inch equatorial and siderostat telescope, and there will probably be placed in the other dome a special form of reflecting telescope, devised by Professor Wadsworth as a monument to Professor James E. Keeler.

Director Wadsworth is greatly interested in astrophysical research, and he is sparing no pains to secure an Observatory adapted in the very best of modern ways for research in both the old and the new astronomies.

Leonids at Vassar College, Poughkeepsie, N. Y.-The students in the astronomical department at Vassar College, watched for the Leonid meteors on Wednesday and Thursday nights, Nov. 14 and 15. Tuesday night preceding was cloudy. A fairly continuous watch was kept up by different groups of students from 1 to 5 o'clock on the mornings named. Forty-two Leonids were counted on Wednesday and fifty on Thursday. Many other meteors, Geminids and Orionids were also noted; these were not recorded.

The Leonids at Jamaica Plain, Mass.—I observed on the 12th from 2:30 to 5:30 A. M. I saw during this period 5 Leonids and 7 other meteors. The 13th was cloudy until about 6 o'clock. The 14th was cloudy from 12 to 1:30 A. M. My observations were from 12 to 5:20 A. M. During that time I saw 47 Leonids and 31 other meteors. The 15th I did not observe. On the 16th, 4 Leonids and 9 others, making a total of 103 meteors in all, 56 Leonids and 47 others. All these shooting stars with perhaps three exceptions were from radiants in Gemini and Auriga, Leo Minor, ♪ Ursa Majoris and one or two from Taurus. The larger number came from Gemini, and the next largest from (Iota) Auriga. These meteors with five exceptions (one 0.5 magnitude, three of 1st magnitude and an especially brilliant one of (-2) from ♪ Ursæ Majoris) were of third magnitude. They were very frequent. So that the number of Geminids, etc., were more numerous than the Leonids. I only recorded meteors that shot into region somewhere near Leo.*

* For want of space the detailed observations in tabular form are omitted. The observations appear to be carefully made.

There seemed to be three radiants. The regular radiant and one at y Leonis and Leonis. Nos. 17, 39, 44, 27, 43, 34, 35 and 28 were observed to come from different radiants than the regular one. There was one that started outside of the Sickle, which was marked shooting star, although it may have been a Leonid.

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Nos. 2, 8, 10, 12, 13, 18, 19, 37, 44 were brighter than 1st magnitude; Nos. 12, 13 and 44 were especially bright. On Nov. 14, 1900 a very brilliant meteor of 3 magnitude, green, of 3rd magnitude trail shot from 8 Ursa Majoris. On the 16th observations stopped at 4 o'clock A. M. This shower is not as hopeful as those of 1898 and 1899.

The Leonid Meteors.-Although no remarkable shower has been reported as seen anywhere this year, it is evident that the swarm of Leonids has not all been diverted from its former course far enough to miss the Earth. Watch



was kept for the meteors by the astronomy class at Carleton College, Northfield, Minn., on the nights of Nov. 13, 14 and 15 from midnight to morning, with the result that about 30 Leonids were seen on the 13th and on the 14th. The night of the 15th was cloudy except from 12:30 to 13:30 when the portion of the sky near Leo was partly clear. In that interval only one meteor was seen that being a fine Leonid close to the radiant.

The observers being most of them without experience, the radiant indicated is spread over a pretty wide area, but the center is about two degrees southwest from Leonis. As many meteors were seen from other radiants, as from Leo,

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there being quite a large number from the region of Gemini.

The accompanying charts show the trails platted by about half of the members of the class, duplicates being excluded where it was possible to identify them.

Leonids Observed at Park College, Parkville, Mo.-Professor A. M. Mattoon, director of Scott Observatory, reports observations of the Leonids made on the mornings of the Nov. 14 and 15. On the morning of Nov. 16 it was

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