Illustrations of Chartography

I discovered this on ebay last week and had to buy it. Entitled “Illustrations in Chartography” it shows a series of different cartographic (or chartographic?) techniques used in the “School Atlas of Physical Geography” by Alex K Johnston. You can see the full book here. It’s too good not to share.
sounding weather shading contouring mountains oasis slopeillustrations_chartography_web