My next journey was to Paucartambo, whence I penetrated far into the wild montaña. Finally I went from Cuzco to Arequipa by the lofty pass of Rumihuasi.
On my return to England I continued my studies until, in 1859 to 1861, I was engaged on the important public service of introducing the cultivation of the various species of quinine-yielding chinchona trees from South America into British India. I had the pleasure of making the acquaintance of that splendid old warrior, General Miller, who referred me to new mines of information among the 'Papeles Varios' of the Lima library. During my journeys I was able to explore great part of the northern half of the basin of Lake Titicaca, and the Montaña of Caravaya. I also collected several Quichua songs. Throughout my journeys in Peru I received the heartiest welcomes and the most unbounded hospitality and kindness. The three Indians who went with me into the forests of Caravaya were obliging, willing, and faithful. My experience with them and others gave me a high opinion of the Indian character.
Since my return from Peru, nearly fifty years ago, I have kept up my knowledge of the literary labours of the Peruvians, in the direction of Inca research, by correspondence with friends, and the receipt of books and pamphlets. My most valued
