John Birmingham

“ The astronomical world must surely recognize the good fortune that placed the task of editing in hands like those of Dr. Schmidt, whose disinterested conduct in suspending his labours at his own map for the purpose of publishing the work of another, and giving it precedence, is quite in keeping with the estimable character and scientific devotedness of the chief of the Athens observatory. ”

“ To the largely increasing class of astronomers, professional and amateur, who make the lunar surface their study, and who have depended hitherto chiefly on Beer and Mädler’s map, the publication of Lohrmann’s complete sections must be highly appreciated. Schmidt's own wonderful map of 6 feet diameter will soon appear, and then we shall have the opportunity of testing our own observations by comparison with the lunar features as represented in no less than three great works. ”

“ Evidences of continued volcanic activity in the moon may now be sought with increased facility, while at the same time, the almost cotemporary maps of Lohrmann, and B. and M. may serve to show that many apparent differences are due to the mode, or accidents of sketching rather than to change.
Too much praise cannot be given to Herr J. A. Barth for his liberal expenditure in carrying out the excellent design of his predecessors; and it is to be hoped that the undoubted value of the work will insure a demand that will amply reimburse a large outlay. ”