For last week’s solution I’m gonna lead with the image:
That’s five things that are spirals, both in real life and in the grid (CORKSCREW, ORGAN OF CORTI, NAUTILUS, CYCLONE, HURRICANE), arranged in a larger spiral to spell another thing that’s a spiral, a CONCH.
Did I expect you to know “organ of Corti” without looking it up? Not unless you’re an audiologist or something. Instead I thought it would be backsolvable once you found the other four, as you’d strongly suspect you needed an O to complete a thematic answer and the NE corner would be the most obvious place to look. But this one definitely played difficult – congrats to those who solved it.
Up next is puzzle #70, “Reduction Potential.”
The answer to the metapuzzle is an eleven-letter scientific discipline. Submit your answer using the contact form by 11 pm Pacific Time on Monday, July 27. I’ll publish a new puzzle next Tuesday.