cs 
NOTICES ON THE PUBLICATION OF THE “ MONOGRAPHS 
Guben in 1871 (November 3-5) and in 1872 (August 23-25), but 
I was pressed for time, and two days would not have been sufficient 
for the work. In 1877, when I spent fifteen days there, I was en¬ 
tirely absorbed by the business of packing up the North American 
collection. So far as I remember, Loew at that time did not 
even mention the Amber business to me, and the state of his health 
made him incapable of unpacking the Amber collection. Of that 
visit I have given a detailed account to Mr. Alexander Agassiz in 
a letter which is reproduced below in my Chapter XII, in my 
account of the transfer of the collection. What became of all 
the plates and manuscripts prepared by Loew I do not know, and, 
for the reason stated in Chapter XIV, “ I felt that I had neither 
the right nor the duty to inquire.” 
X NOTICES ON SOME FACTS CONNECTED WITH THE PUBLICA¬ 
TION OF THE SUCCESSIVE VOLUMES OF THE “ MONOGRAPHS 
OF NORTH AMERICAN DIPTERA ” 
1 On my share in translating f rom the German, and in editing , the 
three volumes of Loeufs “ Monographs of North American Dip- 
tera ” 
In my “ Introduction ” and in Chapter I, “ On the Beginnings,” 
etc., I have given a general account of the modus operandi of 
my co-operation with Loew in the publication of his three vol¬ 
umes of the “ Monographs.” I deem it necessary now to give 
some further explanations, which principally concern my share in 
translating Loew’s volumes. 
In the Preface to the first volume (p. v) Loew says: “ As to 
the English text, I use, it is true, the assistance and advice of a 
friend, who is well acquainted with the English language ; should, 
nevertheless, some roughness occur, I beg that it may be attributed 
to some supplementary alterations of my own, which circum¬ 
stances prevented me from submitting to him,” etc. When the 
manuscript reached me, I found that the English of it was unfit 
for publication. I remember, for instance, that “Ilinterleib” was 
translated “ hindback ” instead of “ abdomen.” By no means master 
of the English language myself, I had a great deal of trouble in 
