34 



ANNUAL KECOKD OF SCIENCE AND INDUSTKY. 



THE MOON. 



" Lohrmann's Map of the Moon consists of 25 sections on 

 the scale of 37.5 inches to the moon's diameter, or the same 

 scale as Beer and Madler's ' Mappa Selenographia.' They 

 have been engraved at different times on copper-plate, and 

 are in every respect perfectly analogous to the four original 

 sections which were issued in 1824. They have been care- 

 fully edited by the well-known selenographer Heir Julius 

 Schmidt, of the Observatory at Athens, and are a faithful re- 

 production of the original ink maps of Lohrmann, so that in 

 the present map we have an exact representation of the sur- 

 face of the moon as it appeared to Lohrmann during the 

 period 1821-27. On this account, therefore, the map will 

 form a most valuable contribution to selenography. In his 

 capacity of editor, Schmidt has added to the map all the 

 standard names of Beer and Madler. lie has also named a 

 number of additional points." 



Schmidt's great map of the moon has not reached this 

 country, so far as we know. 



Professor Newcomb, of Washington, has an important 

 note in Silliman'8 Journal (November) on the mean motion 

 of the moon. It is an abstract of the researches which have 

 been published in full in Wash. Ast. Obs., 1875. 



lie has made a discussion of all trustworthy recorded ob- 

 servations of the moon before 1750 eclipses and occupa- 

 tions. These materials are : 



1. Ancient eclipses (total) of the sun, such as the celebrated 

 ones of Larissa, etc. Professor Newcomb comes to the con- 



