In addition thereto, {HEAD ~ these disulfide compounds} did not give a lowering of the potencies and {TAIL ~ an evolution} of bad odors by decomposition in process of preparation or with the elapse of time 
not give
In addition thereto , { HEAD ~ these disulfide compounds } did not give a lowering of the potencies and { TAIL ~ an evolution } of bad odors by decomposition in process of preparation or with the elapse of time
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL 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