Boy, you got a real problem ahead. I remodeled my mother-in-law's kitchen
about 20 years ago, a farm house built in the early 20's. All lath and
plaster. I had a simular problem with the crown molding. I had to screw a
backer to the ceiling to attach the molding to. I ran the backer (1x2) thru
the TS so the edge matched the back side of the crown molding. I still ended
up with some plaster cracks but they were small.

Hope this helps.

ELA

"nemo" wrote in message
om...
Attach the crown molding to the ceiling only *not* to the cabinets.
Then, as the cabinets settle, you won't see the gap because they will
simply slide against the crown. If you attach them to the cabinets,
they'll pull away from the ceiling.

Will the cabinets really settle significantly? I'm going to screw them
to 80 year old studs.

How would I best attach the molding to a plaster-lathe ceiling?

How can I attach the crown to the unlevel ceiling and still have it
line up with the cabinets?