Occultations. 443 



craters near Aristoieles and JEJgede, Jan, 23., and reviewed Feb. 

 22, by Mr. Leigh, then of Birkenhead, with, a very fine 9j-inch 

 silvered speculum by With, but I had not at that time before 

 me the sketch with which that gentleman had favoured me, 

 nor any other than a very general recollection of its nature. 

 I have no doubt the larger crater might be perceived with 

 much less powerful instruments. • 



Now, are we to suppose that these objects did, or did not, 

 exist at the time of B. and M. ? In the face of their own 

 drawing and description, it cannot be pleaded that this is an 

 out-of-the-way region, which a selenographer might perhaps 

 be pardoned for scrutinizing with less care. Nor can the 

 admitted inferiority, as to light, of their optical means be 

 alleged, when a portion of the objects, at least, are so very 

 readily and persistently seen. A reference to Lohrmann^s 

 map shows us one of the twin craters, and so far tells against 

 his contemporaries. But the question, it would appear, admits 

 as yet of no completely satisfactory answer ; and the same 

 inquiry might be made, with the same ambiguous result, in 

 examining many other parts of the lunar hemisphere. There 

 must evidently be greater precision in detail before we can 

 form safe conclusions as to the present condition of the moon. 



OCCULTATIONS. 



Jan. 8th, 18 Aquarii, 6 mag. 4h. 4m. to 5h< 2m. — 9th. 

 B.A.O. 7774, 6 mag. 6h. 2m. to 7h. 10m.— 16th. 6 Tauri, 

 4| mag. 4h. lm. to 4h. 39m. 75 Tauri, 6 mag. 4h. 4m. to 4h. 



•" CD 7 O 



50m. 6~ Tauri, 4| mag. a near approach. B.A.C. 1391, 5 mag. 

 4h. 47m. to 5h. 48m. Aldebarak, 7h. 26m. to 8h. 37m. — 

 17th. 130 Tauri, 6 mag. llh. 59m. to 13h. 6m.— 18th. 26 Ge- 

 minorum, 5| mag. 7h. 44m. to 8h. 48m. (The night of J 6th 

 will be marked by especial interest, though too near the Full 

 Moon to admit of the visibility of the dark limb; or give any 

 chance of the optical phenomenon of "projection.") 



