Wired has photos and brief explanations of them here. The labs they discuss are Lichtman's Harvard lab, which uses its automatic tape-collecting lathe ultramicrotome (ATLUM), Winfried Denk's Heidelberg lab, which first sliced the brain to 25 nm and uses electron microscopy on rabbit neurons, and Van Weeden's Harvard lab that
Three techniques to map neural circuitry
Wired has photos and brief explanations of them here. The labs they discuss are Lichtman's Harvard lab, which uses its automatic tape-collecting lathe ultramicrotome (ATLUM), Winfried Denk's Heidelberg lab, which first sliced the brain to 25 nm and uses electron microscopy on rabbit neurons, and Van Weeden's Harvard lab that