We propose an ISOCAM survey of an embedded cluster in the NGC 281 West
molecular cloud.  On the basis of our recent combined
millimeter/centimeter/near--infrared survey of this region, we have
proposed that the formation of this cluster has been triggered by a
radiation driven shock.  Due to the fortituitous geometry of the NGC
281 West region, it is perhaps the best candidate site of triggered
star formation to date.  Using ISOCAM, we will survey the molecular
cloud for extremely young stellar objects using the 7.8, 9.6 (silicate
feature), 11.4 and 15.0 microns filters.  ISOCAM has the unparalled
sensitivity to detect emission from accretion disks and infalling
envelopes around low mass stars in the cluster.  With ISOCAM, we can
identify the youngest objects in the cluster: protostellar Class I and
Class 0 objects as well as pre--main sequence stars with luminous
accretion disks (Class II objects).  ISOCAM will provide a unique test
of our shock triggered star formation model: if the formation of stars
is indeed triggered, then the youngest stars - as identified by ISOCAM
- should be confined to postshock molecular gas; however, if star
formation is spontaneous, then these sources should be distributed
through the observed dense molecular gas.  We can also search for
emission from cluster stars which have emerged from the molecular
cloud into the HII region, and thus assess the impact of the UV
radiation on disks and protostellar envelopes.