Teetering on the cusp

Spring fever, a better American chestnut, the lost Critchfield spruce, and algae cyanotypes

We’re teetering on the cusp of spring here in Brooklyn. Outside the gray-brown sticks that have been dull and colorless for the past however many months are tipped with green and red buds. On warmer days, the streets and sidewalks are thick with runners and walkers. The afternoon light is bright and warm, even in our basement. I’ve cracked our windows t…