Pocket style diary; hand-written entries
There appears to be different hand-writing in diary; maybe more than one person recording their entries. See, for example, entries for July 3rd, 10th, 12th, 18th, 20th, etc. where the writer references Mulvey, so it would seem that Mulvey is not always the author of the diary.
At the back of the diary, is an excerpt written by Jas [McLean], introducing a report written by G.J. Wolseley, Commander, Red River Expedition (4 written diary pages, a 'good-bye and thanks' address).
A very descriptive narrative diary; mentions Wolseley, Dawson, portaging, recreational activities, hardships, etc.