Unable to comprehend graph of aqueous lithium bromide vapour pressure

LiBr Vp chart:

http://www.mediafire.com/view/x77zc8...sj/LiBr_Vp.jpg

or

http://www.mediafire.com/view/u4dnoc...Chart_LiBr.pdf

Lecture in question (p.13)

http://www.mediafire.com/view/gly78y...Lecture_15.pdf

http://i.stack.imgur.com/HXjFV.png

In the lecture it says that at this temperature & at this concentration crystallisation will occur... however how can this be ascertained using the chart? I do know how to read such Duhring plots..