SCIENTIFIC SUMMARY. 
263 
(on August 31 ), which turned out to bethe missing planet. During the search 
instituted for it, another planet (the 56th of the asteroids) was detected, 
which received the name of Pseudo- Daphne. This asteroid has, therefore, 
the distinguished honour of being No. 41, No. 56, and No. 75, of the 
group of asteroids, two of which numerals it must now be contented to 
relinquish. From observations on August 31, September 5, and September 
11, there can he no doubt of its identity with the original object. Pseudo- 
Daphne has received the name of Melete ; the planets 73 and 74 discovered 
on April 7 and August 29 respectively, being called Clytia and Galatea. 
Lunar Mountains. — Mr. Birt has detected a remarkable chain of lunar 
craters which have been overlooked by Madler and Schroter, and whose 
positions are not given in any other maps of the moon. They are situated 
on the surface of the Mare Tranquillitatis, being the highest portion of the 
wall between Menelaus to a point opposite Plinius, and situated on the 
southern border of the Mare Serenitatis. It is very seldom that they can 
be advantageously seen, and Mr. Birt was only able to observe them in 
1061, April 16, and 1862, May 5 and October 29. On May 5, 1862, he 
noticed that there were three deep craters, hardly distinguishable from each 
other, being quite in shadow ; two rocks and another crater, which is 
isolated from the further continuation of this wall, were also seen, they 
being all situated at the end of the promontory called Aclierusia. Mr. 
Birt has recognized other discrepancies in Beer and Madler’s maps, but 
does not consider them to be real changes, the great difficulty of seeing 
them fully accounting for their omission. 
The Elchies Telescope . — The great equatorial of Ross, furnished with a 
telescope of eleven inches aperture and sixteen feet of focal length, has 
been almost lost sight of since its appearance at the Exhibition of 1851. 
It has of late years been in the possession of J. W. Grant, Esq., of Elchies, 
Morayshire, who, however, has been unable to make as much use of it as 
lie could wish, or as his former success with a live-foot telescope in India 
would lead one to anticipate — he having with the latter instrument dis- 
covered the companion to Antares two years before Professor Mitchell, who 
was furnished with the great Cincinnati refractor. 
Professor Smyth, who examined the optical and mechanical arrange- 
ments of the Elchies telescope, reports highly on both qualities. When 
it is considered that one portion of the stand alone weighs eleven tons, its 
firmness and absence from tremor may be imagined. In the double 
star 28 Aquilse, Professor Smyth detected a new or third companion, 
which is an exceedingly faint object, at nearly the same distance from the 
large star as the other one. In the triple star Delta Aquilse, the closer 
companion was identified, but it was found that it had decreased in bril- 
liancy, from the twelfth magnitude in 1833, to the sixteenth in 1862. Two 
new stars of the fifteenth magnitude were detected at 61 and 107 seconds 
from the principal star in the beautiful system of Beta Cygni. A faint 
companion of the same magnitude was discovered within 70 seconds of 
Zeta Sagittse. New stars were also detected in the neighbourhood of 452 
Cygni and 1 Pegasi, at the respective distances of 98 and 80 seconds from 
the principal star, and three new ones were found to accompany 312 
Pegasi, at the distances of 81, 106, and 127 seconds respectively. In the 
