A Timm-Nissl multiplane microscopic atlas of rat brain zincergic terminal fields and metal-containing glia.The ability of Timm's sulphide silver method to stain zincergic terminal fields has made it a useful neuromorphological marker. 
Timm's sulphide silver method
The Timm-Nissl atlas, available from EBRAINS, enables experimental researchers to navigate normal rat brain material in three planes and investigate the spatial distribution and density of zincergic terminal fields across the entire brain.
EBRAINS