182 RUBIACEAE. 
covered by all these estates is 1,779 acres, the greater por- 
tion of which is under cultivation. The total number of t 
in 1889 were reckoned at 1,709,656, and included the foll 
ing varieties :— 
Officinalis 981,919 
Hybrids 655,856 
Succirubras 70,693 
SA er ce ne eeneee - 273. 
Other kinds 915 
Ae 1,709, 656 
In 1879, ten years Soviet the number of plants on 
estates was computed at 569,031, and was composed of 
following :— 
_ Officinalis 305,432 
Succirul | 260,837 
Grey ; 1,874 
Calisayas . a 552 
Other species ... .. wees tkees s hiss ves 336 
569,031 
The Cinchona officinalis, yielding the Crown bark of 
merce, is the chief species cultivated on the Nilgiris, and i 
of the most desirable kinds for the manufacture of quit 
The Calisaya bark is the best quinine yielder of all the 
chonas, but unfortunately will not grow on the elevateds 
the Government plantations. (inchona succirubra afford 
bark, official in the British Pharmacopeia, and which obt: 
but little favour now in commerce. The statistics of | f 
compared with 1889 show how the red and grey bark pl 
have given way in the plantations to species of much gi 
value, such as the officinalis and the officinalis hybrid. 
The outturn of bark from these estates is calculated ¢ 
100,000 pounds per annum, the whole of which has n 
recently been sold in AE eg or by public aucti 
country, but within the last two years the 
pnipbote of quinine and other alkaloids has 
