a thread, a palpable thread

This morning in Punctuation I discussed one particular exhibit at the Mutter Museum in Philadelphia (it had some connection to a major point under discussion); in Research we reviewed some excellent advice on plagiarism by my wise colleague Deb Gussman; and in Medieval Irish we discussed the varied and rich productive value of cows. A thread connects all three discussions, but you needed to be in all three classes to recognize it.