200 nobeht's tests. 



have recently examined two new test plates by Nobert — the first 

 ruled for Professor Barnard, of Columbia College ; the second for 

 the Army Medical Museum — in which the maker has attempted to 

 rule lines twice as fine as those of the nineteenth band. Tliese 

 plates have twenty bands. The first ten correspond respectively 

 to the 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 17th, and 19th of the 

 old plate. The lines in the second group of ten bands purport to 

 be ruled at the following distances apart: — The lltli band 

 TTD^oTT ^^ ^ Paris line, the 12th band i^^o, and so on up to the 

 20th band, lines of which are said to be 2 o~d^o~o ^^ ^ Paris line 

 apart. As I have not yet been able to resolve any of these new 

 bands I will not at present express an opinion as to whether Nobert 

 has actually succeeded in ruling them as attempted. 



Finally, I would say that my attention having been directed to 

 the accounts of Mr. Webb's fine writing on glass, which appears 

 to be almost as marvellous in its way as Nobert's work in its, I 

 have written to Mr. Webb requesting him to prepare a specimen 

 for the museum. I anticipate both pleasure and instruction from 

 its examination, and have no doubt that I shall find as much to 

 admire in his work as I do to condemn in his arguments. 

 With bigh consideration, 



J. J. WOODWARD, U.S. Army, 



Honorary Foreign Member. 



