3 , 93 
source of revenue. ‘those who are disposed to try it even on a 
small scale can get full directions about it from the Agricultural 
Department of the University of California, or by addressing 
Professor E. W. Hilgard, the superintendent, at Berkeley. 
ates The proprietors of the Pacific ‘Tannery are making estimates 
on its use, and will soon be able to announce what they can af- 
ford to pay for the green tubers, and will’also ascertain what is 
the average yield per acre, so that farmers may be able to figure 
on the possibility of cultivating it as a winter crop. 
The Pacific Tannery can use hundreds of tons of canaigre 
‘every year, and every tannery on the coast will use it as fast as 
_ they can get enough of it. 
ey te 
We take the following additional information about this plant 
_ from an article in the Los Angeles Herald by L. M. Holt: 
This canaigre very much resembles the rhubarb or pie-plant 
_ in leaf, and it has a root very much like a beet. It isa native of 
Chihuahua, Sonora, New Mexico and Arizona, and is found wild 
in some parts of Southern California. 
It is only during the past four or five years that this plant has 
attracted public attention as a commercial proposition. In 1882 
by making shipments of the wild root to the eastern states and, 
_ Europe, but the scarcity of the root was an obstacle to success, 
_ and the idea of cultivating the plant was not then thought of. 
; The value of the root consists in the amount of tannic acid it 
carries, which ranges from twenty-five to thirty-five per cent, 
and this acid is used extensively all over the world in the manu- 
hemlock bark, which are getting very scarce, and hence the price 
of tannic acid is constantly on the advance. . 
The first shipment of this root in its green state was made to 
Glasgow, Scotland, in 1887, and after a trial it was stated that 
_ one firm there (Martin & Miller) could use 10,000 tons per year 
at $40 per ton, in its sliced and dried state. At Eddy, in the 
Pecos valley, in New Mexico, the farmers are cultivating can-_ 
aigre, and are getting $10 per ton in its green state forall they 
can raise. The commercial value of canaigre appears to be es- 
ablished beyond all question. Professor Eitner of the Vienna 
research station says that ‘‘ canaigre is suited for tanning eae 
