374 Letters, Extracts, Announcements, &c. 
put right. It stands there that the specimens from South 
Celebes have the base of the bill of a deep yellow colour. 
It must be the ¢ip of the bill, otherwise also the following 
words, “in one specimen not only the first third, but half 
the bill,” would have no meaning. 
Yours &c., 
A. B. Meyer. 
Royal Zoological Museum, Dresden. 
April 17,1880. 
Sirs,—In consequence of your very just criticism of 
my ‘Index’ to Reichenbach’s ornithological works (antea, 
p. 243), I became aware—to my regret, too late—that I have 
made a mistake in the choice of the title to my ‘Index.’ It 
ought to have been ‘Index zu L. Reichenbach’s ornitholo- 
gischen Abbildungen,’ instead of “ Werken.” 
If I had intended to index also the letterpress of the works 
in question, I should, of course, also have had to take into 
consideration those thirty-two pages mentioned by you 
(p. 244) as an instance of omission on my part; but this not 
having been my plan, and having been obliged to restrict 
myself to the titles of the figures, I could not pick out that 
list or any other part from the whole, however important it 
might be, or though it might contain specific and generic 
names which do not occur among those of the figures. 
Tf Reichenbach’s letterpress had been also indexed, my book 
would have swollen to about double its size; and I could not 
afford to publish more than I did, because I was obliged to 
print it on my own account. I did not succeed in finding a 
publisher who would pay the printing-expenses, there being 
only a very limited number of copies of Reichenbach’s works 
in the hands of the public; hence I shall not get returned 
half my expenses by the sale of copies. 
This was the chief reason for restricting myself to index 
the titles of the figures, which alone amounted to about 
20,000; but I confess myself guilty of having provoked your 
criticism by cheosiag a wrong title, which ought to have 
