the Doctor's men, Chuma and Susi. Ever ready to serve his old friend
Livingstone, he took care that they should be at my elbow so long as I
required them to help me amidst the pile of MSS. and maps. Their
knowledge of the countries they travelled in is most remarkable, and
from constantly aiding their master by putting questions to the
natives respecting the course of rivers, &c., I found them actual
geographers of no mean attainments. In one instance, when in doubt
concerning a particular watershed, to my surprise Susi returned a few
hours afterwards with a plan of the whole system of rivers in the
region under examination, and I found his sketch tally well with the
Doctor's map. Known to me previously for years on the Zambesi and
Shiré it was a pleasure to have them with me for four months. Amongst
other good services they have aided the artist by reproducing the
exact facsimile of the hut in which Dr. Livingstone expired, besides
making models of the "kitanda" on which he was carried, and of the
village in which his body lay for fourteen days.

I need not add what ready and valuable assistance I have derived from
the Doctor's old companion Dr. Kirk wherever I have found it necessary
to apply to him; some of the illustrations are more particularly owing
to his kindness.

It only remains to say that it has been thought advisable to retain
all the strictly scientific matter found in Dr. Livingstone's journals
for future publication. When one sees that a register of the daily
rainfall was kept throughout, that the temperature was continually
recorded, and that barometrical and hypsometrical observations were
made with unflagging thoroughness of purpose year in and year out, it
is obvious that an accumulated mass of information remains for the
meteorologist to deal with separately, which alone must engross many