High and low
We note some gaps in our expertise.
But first-
A changing syllabus
Turning off the pumps
Attention to detail
Learning the kingdoms
Domesticated plants
The earliest servant
The first plant pressed into human service is probably not the one you’re thinking of.
A difficult problem
A legacy
Unimportant history
Obscure biography
A book about someone we’d never heard of turns out to be unexpectedly interesting.