HALIDAY AND LOEW 
57 
publicity; a sincere desire of being useful, by imparting useful 
knowledge to others, unmindful of the amount of work it involved 
(and that even in cases where other savants would have kept quiet 
in order to secure priority), — all this, combined with an almost 
feminine coyness, hiding his free gifts under his initials, or in 
private letters. An exquisite specimen of Iialiday’s courtesy 
towards his critics is found in his paper, “ On the Affinities of the 
Aplianiptera ,” etc., Natural History Review, January, 1856, p. 
12. In a footnote Haliday quotes the following passage from Bur- 
meister’s “ Manual of Entomology,” Yol. II, p. 407 : “ Haliday . . . 
after the fashion of his compatriots, who seem to consider the mul¬ 
tiplication of subdivisions as the highest aim of descriptive zoology, 
has made of the Linnean genus Thrips a new order which he calls 
Thysanoptera ,” etc. To this Haliday’s answer was: “I am now 
quite disposed to acquiesce in Burmeister’s sentence as regards 
the particular case, and I do not feel called on to protest against 
the sweeping generality of his obiter dictum.” 
I shall now attempt to bring out the degree of appreciation ac¬ 
corded by Loew to Haliday’s merit, so far as I can gather traces of 
it in his publications and in his correspondence. In several pas¬ 
sages of his works Loew pays Haliday a due tribute of rec¬ 
ognition and gratitude. In the Monograph of the European 
Ephydrinidae ( “ Neue Beitrage,” Yol. VII, 1860, p. 2 at bottom), 
Loew regrets that Stenhammar (1844) had not made use of the val¬ 
uable work of his predecessor Haliday, “ who, for many years, has 
made a successful study of the British species ; . . . the results have 
been incorporated in Walker’s ‘ British Diptera,’ and constitute, in 
the shape in which they appear in the Appendix to the third 
volume (p. 343-346), the most finished and perfect work on the 
systematic arrangement of this family in existence at present.” 
A similar acknowledgment will be found in Loew’s paper on 
Dolichopodidae ( “ Neue Beitrage,” Yol. V, 1857, p. 1) : “ One of the 
principal publications in the domain of dipterology during the 
past year is the ‘ Insecta Britannica. Diptera,’ by Walker, now 
completed with the third volume. An invitation to publish a 
review of this work (which appeared since in the Natural His¬ 
tory Review') offered me the occasion to make a thorough study 
