p. iv, Preface, dated May, 1872, and signed M.M.: The Widow and legal representatives of my lamented friend the late Chief Factor A. McDonald have, with a public spirit which commends itself, allowed me the use of his “Notes,” as he calls them—They are now given as called for—That they are so crudely given is my fault; and I have but to trust to the generosity of those who may honor the little work with a reading, pleading as my excuse…that it has only been at snatched moments from engrossing business duties, and at odd hours in the night, that I have been able thus, with running pen, to throw off these hurried pages, to meet what seemed a pressing call and inquiry.