niSTORY OF THE LITERATURE. 
327 
cm portion of the cotton -belt the frosts of winter destroy the insect in 
all its stages, unless in situations of unusual protection, but that in the 
more southern portion, where severe frosts rarely pccur, they survive 
the risks of winter." This theory of Glover's (given by the editor of 
the Report, Mr. J. R. Dodge) was fintenable so far as it included the 
earlier states of the insect, but so far as it refers to the moth it antici- 
pated the true state of things, as we have proved in this investigation. 
Burly in 1874, Mr. Grote, in his " List of the Noctuidn of North Amer- 
ica," announced his belief that the Cotton Worm Moth hitherto called 
Anomis .njlhia, is identical with the previously described Aletia argU- 
lacea of Hiibner. Tins view was accepted on his authority by most 
subsequent writers, and in the first edition of this work we treated of 
the species by the latter name. 
At the Hartford meeting of the American Association for the Ad- 
vancement of Science, the same year, Mr. Grote read quite a lengthy 
paper entitled " The CottOB Worm of the Southern States (Aletia arfjil- 
lacea Buhner.)" In thisis | nit forth (as original), for the fourth time ill lit- 
tle more than a quartcrof a century, the familiar migration theory. Yet 
it is approached in a more careful manner, and the arguments advanced 
in its support are ingenious, and would have had much force had they 
DOt flow eel from mistaken premises. The paper shows lack of any prac- 
tical knowledge of the facts. In the discussion which followed its reading 
we disputed its conclusions on hibernation, and the author has added a 
paragraph to the paper, as printed in the Proceedings of the Associa- 
tion, which was not in it as originally read and published in the New 
York Tribune extra, ami winch embodies the very point of our criti- 
cism. Mr. Grote, starting with the proposition that there are no para- 
sites upon the Cotton Worm, argued that the absence of such parasitic 
checks can be easily accounted for by supposing that the States are 
not the natural habitat of the species, but that then 4 is an influx of the 
moths every year. Dr. (ioiham, on the other hand, bred many para 
sites, and yet from this opposing fact drew the same conclusion, sup- 
posing the last brood of worms to be entirely killed by the parasites, 
thus necessitating an incoming of the moths the ensuing season from 
SOme more southern country. 
From this date (1S74) up to the commencement of the official investi- 
gation nothing of special importance appeared. There were many news- 
paper articles, it is true, but they were based on the writings of others. 
Early in 1878 appeared a few copies (printed from stone for private 
distribution) of a quarto volume of plates and explanations, by Mr. 
Glover, and entitled u Manuscript Notes from my Journal — Cotton and 
the Principal Insects, &c, frequenting or injuring the Plant in the 
Uuited States." This is by far the most creditable work on the sub- 
ject that had appeared up to that time, and the plates were specially 
commended in the award of a gold medal made to Mr. Glover for his 
exhibit at the Paris Exposition of 1805. 
