{TAIL ~ The clear borosilicate glass microsphere} offers no appreciable attenuation of {HEAD ~ the emitted light} 
{ TAIL ~ The clear borosilicate glass microsphere } offers no appreciable attenuation of { HEAD ~ the emitted light }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD