Which microscope? 
Köhler illumination 
Phase contrast microscopy 
Differential Interference contrast (Nomarksi) microscopy 
Photo-microscopy of living cells 


Keeping the guys still and making them sharp 
Revision using a virtual microscope 
Basic microscopy
contrast
Koehler
(by Rudi Rottenfusser, Zeiss at MBL, WoodsHole)
Scanning electron microscopy (dinoflagellates 
)
Transmission electron microscopy - whole mounts
Transmission electron microscopy - sections