The cover has a corresponding diametrically extending sealing surface adapted to engage the sealing edge of the partition to form a seal to prevent mixing of the contents of the compartments when the cover is in {HEAD ~ place} on {TAIL ~ the container} 
The cover has a corresponding diametrically extending sealing surface adapted to engage the sealing edge of the partition to form a seal to prevent mixing of the contents of the compartments when the cover is in { HEAD ~ place } on { TAIL ~ the container }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL