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