#section'

[tsa19point-line-plane]

HATCHING - DRAWING WITH LINES

top: R.A.SLOSS: section Ischia-Ercolano

center: MARY-ANN RAY: from “7 PARTLY UNDERGROUND ROOMS AND BUILDINGS....”  (book on our reserve shelf)

http://sorbusaucuparius.blogspot.com/2011/12/some-very-fine-drawings-and-some-by-me.html

_ik