are those drawings relevent?
I initially marked it as no, but have now doubts if those should have been marked?
by geoffrey.belknap scientist
This is an interesting one - unlike the tables discussion held on this thread, these would count as illustrations - because the boxes represent something - rather than in the case of tables where boxes are used solely to mark out text. The tough park of this page if figuring out what the boxes represent! Looking at the original on the BHL website on pages just prior to this might give a clue if you are interested