HALIDAY AND LOEW 
51 
VIII HALIDAY AND LOEW 
Besides the scanty data on Haliday’s life and work, contained 
in the “Obituary Notice” in the Ent. Monthly May., 1870, p. 91, I 
am not aware of the existence of any more detailed account of 
this remarkable man and eminent entomologist. I shall attempt, 
therefore, to supply this want in a certain measure by giving a 
survey of his relations with Loew, which have exercised a consider¬ 
able influence on the work of both of them. Haliday and Loew 
were contemporaries, being born in the same year, 1807, but Hali- 
day’s first publication dates from 1831, nine years before Loew's, 
and he had already published several valuable papers on Diptera 
when Loew appeared upon the stage. 
There are several strange coincidences in the chronology of Diptera: The four 
great dipterologists of the century were born nearly at the same time : Loew and 
Haliday in 1807 ; Zeller and Rondani in 1808. Loew and Rondani died in the 
same year, 1879, Haliday nine years earlier, 1870; Zeller survived them all, and 
died in 1883. The first publications on Diptera by Loew, Rondani, and Zeller 
appeared in the same year, 1840. 
I have called attention in the Berl. Ent. Zeit., 1895, p. 168 (144. 1895) to 
similar coincidences in the dates of the discovery of some remarkable forms of Dip¬ 
tera, as Scenopinus, Orplinephila, and some of the Blepharoceridae. 
The interesting article of C. L. Marlatt: “ Brief Historical Survey of Ento¬ 
mology ” ( Proc. Entom. Soc. Washington , Yol. IY, Xo. 2, 1898), coutains a 
chronological table of naturalists, and especially of entomologists, which shows 
that the years 1807-1809 were particularly prolific of them. Haliday and 
Rondani, born in 1807 and 1808, should have been added to this list. 
My sources of information on the subject of the relations of 
Loew and Haliday consist in the mentions of Haliday in Loew's 
letters to me, as well as in the very valuable collection of letters 
of Haliday to Loew, now in possession of Mr. G. H. Verrall in 
Newmarket, England, which lie most generously loaned me for 
study. To work up exhaustively this most abundant supply of 
information on the mutual influence of both entomologists, afforded 
by this correspondence, is a task beyond my power. I shall keep 
within the bounds of my present unambitious purpose. 
The earliest letter contained in Mr. Yerrall’s collection is dated 
from Clifden, near Belfast (Ireland), September 27,1847. It begins 
