octor by the Indians.
Well, one day I said, 'Manuel, I may some day require some seed
and flowers of the famous white flower, _Rogo cascarrilla_, as a
remedy; and I shall rely upon you not deceiving me in the way
you have told me.' He merely said, 'Patron, if you ever require
such seed and flowers, I will not deceive you. And I thought no
more about it.

"Manuel was never aware of my requiring seed and leaves for
propagating purposes; he was always told they were wanted to
make a special remedy for a special illness. For many years,
since 1844, I had felt deeply interested in seeing Europe, and
my own dear country in particular, free from being dependent on
Peru or Bolivia for its supply of life-giving quinine.
Remembering and relying on Manuel's promise to me in 1856, I
resolved to do all in my power to obtain the very best cinchona
seed produced in Bolivia.

"His son Santiago went to Australia with me in 1858. In 1861,
the day before sending back to South America Santiago and the
other Indians who had accompanied me there as shepherds of the
alpacas, I bought 200 Spanish dollars, and said to him, 'You
will give these to your father. Tell him I count on his keeping
his promise to get me forty to fifty pounds of rogo cinchona
(white flower) seed. He must get it from trees we had sat under
together when trying to reach the Mamore river in 1851: to meet
me at Tacna (Peru) by May, 1863. If not bringing pure, ripe
rogo seed, flowers, and leaves, never to look for me again.'

"I arrived back in Tacna on the 5th of January, 1865. I at once
sent a message to Manuel, informing him of my arrival. At the
end of May he arrived with his precious seed. It is only now,
some twenty-four years after poor Manuel promised not to deceive
me, manifest how faithfully and loyally he kept his promise. I
say _poor_ Manuel, because, as you know, he lost his life while
trying to get another supply of the same class of seed for me in
1872-3. You are aware, too, how later on I lost another old
Indian friend, poor Poli, when bringing seed and flowers in
1877.

"I feel thoroughly convinced in my own mind that such
astonishingly rich quinine-yielding trees as those in Java are
not known to exist (in any quantity) in Bolivia. These wonderful
trees are only to be found in the Caupolican distri