What are you embedding with?
Using paraffin and sucrose/OCT, we just pour slowly and bubbles aren't
created.  You can also push them to the sides of the embedding mold
with a needle or forceps; bubbles near the edge of the block shouldn't
interrupt your sectioning because they'll be trimmed off.

Emily
-- 
penguins, spoons, and you--what's life like among the flightless?
http://www.getafirstlife.com/

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