NOTICES ON THE PUBLICATION OF THE “MONOGRAPHS 
69 
correcting it, and the result left much to be desired. In con¬ 
sequence, I wrote to Loew that I should prefer, in future, to have 
the manuscript in German, and that I would take care to have it 
translated in America. This was actually done with Vol. II. 
1 entrusted the task to a translator. He did the routine work of 
translating the descriptions of the species, for which purpose I had 
drawn up for him a German-English glossary, and I did the rest, 
that is, translating the preface, the introduction, the descriptions 
of the genera, etc. But I soon felt that, even with this method, 
there was too much drudgery for me to undergo in collating and 
correcting the translation. For this reason, when the different 
portions of Vol. Ill were, one after the other, sent to me, I found 
it easier to translate them myself. The editing and proof-reading of 
the first two volumes were done by myself; the third volume was 
edited by my friend Dr. R. A. Witthaus of New York, during my 
absence in Europe. Before being struck off, the sheets passed, of 
course, through the hands of the authorities of the Smithsonian 
Institution. All these details, as well as the dates of publication, 
are mentioned in the “ Advertisements ” of Prof. Joseph Henry on 
the reverse of the titlepage of each volume. 
2 On the long delay attending the 'publication of the third volume 
of the “ Monographs of North American Diptera ” 
The “ Advertisement ” signed by Prof. Joseph Henry on the 
verso of the titlepage of Loew’s Vol. Ill (December, 1873) 
of the “ Monographs of North American Diptera ” shows that this 
volume appeared nearly five years after Vol. IV (January, 1869), 
which contained my “Monograph on Tipulidae brevipalpi.” 
During my visit to Meseritz in 1865, Loew told me that the 
Ortalidae were ready for publication; he repeated this assurance 
in a letter dated January 31, 1866: “ I told you, when I had the 
pleasure of seeing you, that for the third volume of the ‘ Mono¬ 
graphs ’ the Ortalidae were ready. In the hope of obtaining more 
material I had delayed, for some time, to make a fair copy of them. 
This expectation not having been fulfilled, I have long ago be¬ 
gun to write out the manuscript in its final form, and to prepare 
