Index: trunk/ppImage/src/ppImageMosaic.c
===================================================================
--- trunk/ppImage/src/ppImageMosaic.c	(revision 7639)
+++ trunk/ppImage/src/ppImageMosaic.c	(revision 7686)
@@ -21,4 +21,8 @@
     pmChip *inChip = pmFPAviewThisChip (view, in->fpa);
 
+    if (!(out->fpa->conceptsRead & PM_CONCEPT_SOURCE_HEADER)) {
+	psMetadataCopy (out->fpa->concepts, in->fpa->concepts);
+	out->fpa->conceptsRead |= PM_CONCEPT_SOURCE_HEADER;
+    }
     pmChipMosaic (outChip, inChip);
 
@@ -42,4 +46,6 @@
     }
 
+    // XXX test printing of all concepts
+    # if 0
     for (int i = 0; i < in->fpa->chips->n; i++) {
 	pmChip *chip = in->fpa->chips->data[i];
@@ -49,4 +55,5 @@
 	}
     }
+    # endif
 
     pmFPAview *view = pmFPAviewAlloc (0);