Sigs 
in the River Pilate Territories from 1862 to 1864" (Buenos 
Aires 1864), out of print and to-day very rare. 
IIL. 
Outside the indigenous varieties, at present a few of 
the herbacious kinds of North America are cultivated, 
and experiments are being made Egyptian kinds, par- 
ticularly Janowitch and Mit Afifi. 
Among the American varieties, the best known is the 
Lea-Island, and one of short staple ones of the Louisiana 
type and known inthis country by that name. 
The Peerless, Peterkin, and Russell hig-ball have 
also been introduced, some “upland” and perhaps some 
others: but the only one planted on a large scale, and 
which up till now serves as a base for cotton cultivation in 
the Argentine Republic, is the afore mentioned Louisiana 
variety, rustic, highly productive, and which the Chaco 
agriculturists consider has improved in that region; but 
probably this only is an effect of acclimatization. 
The enemies of cotton, if the langosta voladora of 
this country (Schistocerca-paranensis Bourm Brun) be 
excepted, which invades the country from time to time, 
are very few and up till now have done no damage 
worth mentioning. 
The crops obtained in the neighbourhood of Resis- 
tencia reach an average of 2500 kilograms with seed per 
hectare (2204 pounds per acre) and in some cases up to 
4000 kilograms per hectare. for instance, in the Colonia 
Popular. 
The vield in fiber is calculated to amount to about 
one third of the weight, or say about 800 kilograms per 
hectare which is equivalent to 1750 pounds per acre. 
The expenses of sowing and labour are calculated at 
$70 national currency ($30 gold) per hectare and those 
of collecting at $30 to $40 n/c. ($13.20 to $17.60 gold) per 
ton of 1000 kilograms. 
In this way the planters of the Chaco have obtained 
