48 
I do not know but that it is your intention to have the work Btereotyped, bo that 
you can have additional copies struck off hereafter ad libitum. If so, all right. Bat, 
as I have before said, lean not bear the idea of having all the preparatory labor ex- 
pended for so small a number of copies. Your work is of a popular and practical 
character. It gives in a condensed form the greater part of what is known respecting 
theDiptera, with the additional advantage of being copiously illustrated by fig- 
ures. The leading idea and aim of the work is that of popular distribution. The 50 
copies will of course accomplish nothing of this. 
The manuscript was now seut to the publishers of the American Nat- 
uralist, in Salem, for an estimate of the cost of printing*. In December 
3Ir. Glover learned that Baron Osten Sacken had returned to America, 
and at once wrote to him as one of his earliest friends in science, and 
one whose valuable assistance in his dipterological studies he always 
gratefully acknowledged, asking his advice in the matter. The follow- 
ing is an extract from his letter : 
I have just finished and sent to the priuting establishment of Putnam & Co.. to 
find out what would be the expense of printing, which, if you approve, I shall do at 
my own expense, and publish only 50 copies for gratuitous distribution to entomo- 
logical societies, agricultural colleges, etc. Now, mistrusting my own knowledge on 
the subject, I fear I may have made some errors, which, taken at the-present time, 
before printing is commenced, may readily be corrected, but which if suffered to ap- 
pear in print would only lead to future mistakes in nomenclature, etc. I would es- 
teem it a personal favor if you would look the work over and make any corrections 
you see fit, with your name attached, or without, as you wish. All I want is to get 
the work out as perfect as I can, and I am willing to bear the whole expense for the 
sake of diffusing knowledge to those who wish to learn, and have at present no fig- 
ures to go by. I sent the work to Dr. Le Baron and to Mr. Uhler, who have urged 
me to have the work published, and, not knowing that you would ever again visit 
America, I sent the work with all its imperfections on its head to Messrs. Putnam & 
Co., to put the work through as quickly as possible, as soon as they receive the man- 
uscript from you. 
The letter closes with apologies for troubling him, and with the re 
mark that "the work was commenced entirely at your suggestion." The 
italics are Mr. Glover's. 
In a letter written the first week in January, 1874, he informs Baron 
Osten-Sacken that he has directed Putnam & Co. to forward the work 
and says : 
You will find in looking over it (the MS.) that I have enlarged my plan so as to il- 
lustrate as much of the subject as I could — from foreign specimens when I was unable 
to procure native. Shall print 250 copies, if you think it worth the trouble : if nor 
50 copies are all that I shall distribute. 
Mr. Glover was hardly prepared for the reply to the above which was 
returned a few weeks later; and though ir was received in the same 
kindly spirit with which it was written, it hurt him cruelly and very 
nearly caused him to abandon the idea of publication altogether. Baron 
Osten-Sacken told him frankly that the work was too unequal and too 
unfinished; that entomology in the United States had made great prog- 
ress in the last twelve years ; that the plan of publication which was 
suitable in 1862 would appear antiquated in 187-4; and finally that such 
a publication would be open to criticism and financially a dead loss. 
