The Nissl stain shows the high density of Nissl bodies in the cerebellar cortex (right), and the comparably lower density in the tectum and cerebrum (left).
<a href="//commons.wikimedia.org/wiki/User:ManuelSchottdorf" title="User:ManuelSchottdorf">ManuelSchottdorf</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>