NOTES. 
[105] 
clause (not in the paper as read or as printed at the time in the New York Tribune) is 
added, admitting the possibility of hibernation in Florida and southern Texas. Mr. 
Grote based his views on an experience had in what is known as the central cotton 
belt of Georgia and Alabama. The exact northern or southern limits of this belt are 
not stated, but it includes most of the canebrake region of the latter State, and 
extends south of what, in a broader way, we have defined as the southern or hiber- 
nating portion of the whole cotton belt. The arguments against the theory of annual 
immigration are therefore based on experience gained, in great part, in the same lati- 
tude and regions referred to by Mr. Grote. In 1S73, Mr. Grote was connected with 
the Department of Agriculture, and iu the work allotted to him we directed him to 
pay particular attention to this question of hibernation, and it is due him to state 
that his investigations iu southern Georgia, according to his report submitted, led him 
to admit the possibility of the moths hibernating there, though as late as January, 1879, 
he was reported as having confirmed "his theory" that 11 the tly conies from the "West 
Indies with the south winds every year." (Popular Science Monthly, vol. xiv, p. 406.) 
Note 21 (p. 'JO). — A rough division of the cotton belt into a northern and southern 
portion was made in the Introduction to the first edition of this work, and we repro- 
duce it here as a means of defining what we mean by the southern portion of the belt: 
Some similar classification of the cotton belt will also greatly aid in the treatment 
Of this Cotton Worm question, and as a temporary classification, to be elaborated in 
future, I have divided said belt into, first, the southern or permanent portion, where the 
first worms annually appear and the moths in all probability hibernate; second, the 
northern or temporary portion, in whieh the insect does not hibernate, but into which 
it spreads, either by gradual dispersion or by more sudden migration, from the perma- 
nent portion. The dividing line between these two portions must needs be dilficult 
to define, because there is an uncertain region that may, according to season or cir- 
cumstance, belong to either, and also because of the limited observations that have 
yet been made. Taking the early appearance of the worms as a basis, the southern 
portion may be thus roughly defined: Beginning with Texas, it includes the region 
south of the Galveston, Harrisburg and San Antonio Railroad, excluding perhaps the 
QXtraiM western portion, but extending somewhat farther north along the river bot- 
toms. In Louisiana and Mississippi it includes the valley of the Mississippi River 
and its tributaries, with uncertain northern limits. In Alabama it is represented by 
the limestone cotton belt south of Montgomery, though probably extending farther 
north to the east of that point. In Georgia it does not extend north of Albany on the 
west, but doubtless includes the sea islands along the coast, as also those of South 
Caroliua, though tit the present time cotton cultivation is limited to Saint Catharine's 
island. l:i Florida it includes all parts where cotton is grown. 
Note 22 (p. 37). — This claim of Professor Stelle's is later referred to in Chapter 
XIV, and more fully discussed in Note f>7, to which the reader is referred. 
Note 23 (p. 50). — These organs in Lcucarctia acrea were figured and again described 
in J'apiHo, vol. iii, pp.41, 42 (Febr., 1683), by Mr. R. H. Stretch, of California, and 
his query as to whether they had been noticed at the East brought forth notes from 
A. R. Grote, of New York, and C. M. Weed, of Lansing, Mich. (Vopilio, iii, p. 84, Apr., 
1883). The latter stated that he had found similar organs in the male of Pyrrharclia 
Isabella. 
Note 24(p. 8o). — Our remarks on this subject were as follows: 
"The worm in my estimation is worse iu wet weather than in dry, not so much be- 
cause such weather is more favorable to its development, as because it prevents the 
numerous enemies from so effectually performing their accustomed task. The ubiqui- 
tous ant, ever ready to pounce upon the yonng worm when it is helpless, as at the 
time of hatching or of molting, and the many living wasps, ichneumons and other in- 
sects that constantly search the h aves for this sott prey, are hindered in their pre- 
daeeOUfl work; while the worm, relieved of these watchful ( hecks to its increase, de- 
velops apace. It is on the same grounds that I would explain the fact so generally 
noted, that the worm lirst appears in particular parts of a field. Such spots are gen- 
erally the low and moist spots where the cotton grows most luxuriantly, and where 
ants least abound. They represent the spots of least molestation to the young woim." 
* * # (Abstract of au address before the Mobile Cottou Exchange, and published 
in Mobile liegiater, July 9, 1879, and Colorado (Tex.) Citizen, of July 17, lo79.) 
