Bolivian Exploration, 1913-1914

From inside the book:
Some account of the more recent explorations in which I have been engaged in South America has been requested for the Journal, and perhaps needs less apology in that three of the small party of four Englishmen are either at or destined for the front, including myself, and the record carries somewhat interesting information. Over certain details I must for the present draw a veil (lifted, however, for the confidential archives of the R.G.S.), because I think there is some probability of the scientific societies combining to prosecute investigations after the war, when, if I or members of the party survive, some very necessary aid may be lent to such a purpose.