To cut such samples by {TAIL ~ the use} of tools, such as scissors, would crush the delicate cell structure to such an extent that a detailed examination of {HEAD ~ the exposed sheet edge} would not be meaningful 
To cut such samples by { TAIL ~ the use } of tools , such as scissors , would crush the delicate cell structure to such an extent that a detailed examination of { HEAD ~ the exposed sheet edge } would not be meaningful
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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH