[Histonet] goldfish processing

[Earle, Elizabeth]

I have some goldfish which have been placed intact into formalin. They
were exposed to different contaminants in water before being sacrificed.
What is the best way to demonstrate the gills? Should I do cross
sections or sagital sections? Thanks for any help; if someone can point
me to a reference that would be great too.

PS this is for a science fair project, favor for a friend.

Thanks

EE