I don't remember if I have put this link up before so here it is :)
http://www.electricscotland.com/history/books.htm
A couple of interesting ones to start you off.
http://www.electricscotland.com/books/wildlifendx.htm
Wild Life in the West Highlands By Charles Henry Alston with illustrations by A. Scott Rankin (1912)
A few interesting chapters one on Ferox and another on the Beaver.
http://www.electricscotland.com/history/borders/byways.htm
Byways of the Scottish Border by George Eyre-Todd Ilustrated by Tom Scott A.R.S.A (I have just realised I have an original copy of this book :) )
'In the Autumn of 1886 I walked with an artist friend through some of the most famous of the Border country, from Moffat eastwards.'
Interesting to read about the countryside at that time and the places and how they have changed.
I hope you find something of interest.
That isn't one I have come across. It isn't old enough to be in any of the free online libraries yet :)
Thank you for the offer but I am going to say no. I don't know how many books I have lent to people and never got them back so now I neither lend nor borrow any books. I know only too well what it is like to have to try and replace books, especially old and out of print books. I'm not saying I wouldn't return it only that it can happen very easily :)