Entomology. 891 
= preceding century, Duméril, in two special treatises as well as in 
3 his “Considérations générales,” sought to prove this theory as to 
the seat of the organs of smell in the stigmata, while Schelver 
thought this view to be at least “not improbable.” 
Against both of these leading views as to the seat of the sense 
: of smell were expressed, in the last century, different opinions. 
q Thus Comparetti! thought that the sense of smell might be local- 
ized in very different points of the head, in the antennal club of 
Lamellicorns, in the sucking tube of Lepidoptera, in special 
_ frontal holes of flies and Orthoptera, etc., while Bonsdorf con- 
'  Sidered the palpi as organs of smell. 
d Thus were four different views, mixed together, Fi A 
é 
opening of this century; the Hamburg zodlogist, M. C. S. Lehr- 
man, in three different treatises (2, 3, 4), brought together all the 
hitherto known observations and arguments, treated them criti- 
cally, and completed them by his own extended studies. Lehrman 
adopted the opinions of Reimarus, Baster, Duméril and Schelver, | 
that the stigmata presented the most convenient place for the 
site of the organs of smell; but he is the first who sought to 
4 ord a basis for these views by new experiments and also by 
= atomical data. Regarding the antenne he was familiar with a 
= Number of anatomical details which in part had already been dis- 
covered before he wrote, viz, the entrance of a nerve from the 
ran into each antennz,? the existence of muscles (Comparetti) 
and “vessels ” (Bonsdorf) in them, etc. Cuvier followed through- 
cut the lead of Lehrman, but Latreille? returned to the view of 
different Journals, considered the mouth of Arthropods as l 
Probable site of the sense of smell, an opinion which, before his 
j ‘ime, Huber, in his experiments on bees, had thought to be cor- 
_ ‘fect. In 1811 Rosenthal (5) published his discovery of an un- 
doubted organ of smell at the base of the inner antennz of crabs, 
and expressed his Opinion that in the fly-like animals the sense 
of smell was probably localized in the folded frontal membrane 
ove the base of the antennz. This last conclusion seemed so 
logical to his contemporaries that even Burmeister, in his Hand- 
his ead of bees, for the author himself afterwards acknowle ged 
+ discovery to be erroneous. A third publication of the same 
1G, 
z < Peretti: De aure interna comparata, Patavii, 1769. 
Scarpa: De audit ca 
: k auditu et olfactu, Ticini, 1789. 
uS Histoire Naturelle des Crustacés et des Insectes, 1806-1809, II, 50. 
a p.’ * Nouvelles Observations sur les Abeilles, 1792, Il, 475- 
s BUE s Principes- vA at ymi: Co ap È T y A 39- - 
| 
the Perception of smell by the antennz, while Treviranus (7, oh ; 
a der Entomologie, unhesitatingly accepted it. Less ready — 
i year ' by Marcel de Serres (26) returned again to the palpi, and 7 
sia 
tory, while Blainville,’ ten years later, again expressed anew the . 
