and English interests will become more closely linked than heretofore,
that both countries will be eventually benefited, and that the cause of
freedom throughout the world will in some measure be promoted.

Dr. Hooker, of Kew, has had the kindness to name and classify for me,
as far as possible, some of the new botanical specimens which I brought
over; Dr. Andrew Smith (himself an African traveler) has aided me in
the zoology; and Captain Need has laid open for my use his portfolio
of African sketches, for all which acts of liberality my thanks are
deservedly due, as well as to my brother, who has rendered me willing
aid as an amanuensis.

Although I can not profess to be a draughtsman, I brought home with me
a few rough diagram-sketches, from one of which the view of the Falls of
the Zambesi has been prepared by a more experienced artist.

October, 1857.





Contents.


Introduction. Personal Sketch--Highland Ancestors--Family
Traditions--Grandfather removes to the Lowlands--Parents--
Early Labors and Efforts--Evening School--Love of Reading--
Religious Impressions--Medical Education--Youthful Travels--
Geology--Mental Discipline--Study in Glasgow--London