ClipArt ETC
"The branch vascular bundles will be distinctly seen, resembling in some respects the arteries and veins of the human body. A careful examination will show that these are also covered with a very fine lace-work of cells under and over them, and interspersed among the latter will be seen a vast assemblage of translucent dottings, each having an opening across it corresponding to those of the stomates under which they were situated before dissection." -Watts, 1874

Microscopic view of a leaf

"The branch vascular bundles will be distinctly seen, resembling in some respects the arteries and veins…