Apologies for taking do long to reply again and sorry to hear that your grandmother has since died.
The book I have has now been digitalised and you can download a pdf of the book from here:
http://www.archive.org/details/christianmission00pursialaThe text and photos are very much clearer than the hardcopy book I have - the photo of the Girls'School is facing page 152 and there is more information about the Boys' & Girls' Schools on page 153.
Hope you find it interesting.