vi ADVERTISEMENT. 
noticed them ; not only are there several 
enlightened observers in this country 
(Switzerland), but a number of other 
Naturalists, who, since the publication of 
my work, have also observed the same 
occurrences. What has afforded me 
peculiar satisfaction, is, that of having 
learned, vivd voce, from M. De Latreille, 
one of the most distinguished Natura- 
lists of Paris, Member of the Institute 
or Academy of Sciences, that he had 
witnessed, on an extensive scale, and 
had shown to several of his colleagues, 
the wars and pillages of my Amazon 
Ants. 
‘* You will find another proof in a 
work of this great Naturalist, entitled, 
‘ Memoires sur divers sujets de ? Histotre 
Naturelle des Insectes, §c.’ and particu- 
Jarly in that memoir, entitled, ‘ Conside- 
rations nouvelles et generales sur les 
Insectes vivans en Societé. Discours lu a 
la Séance publique de P Academie des 
Sciences, le 17 Mars, 1817. 
