'Burning Glasses' in Ancient India, another question

[pslvax!sadhu at UCSD.EDU]

| 
| If I am not mistaken, the same appears in Vyasa's commentary to Patanjali's
| Yogasutra (or even in the sutra itself - do not remember) Somewhere in the
| first adhyaya.
| 
| -- 

fyi, there is an english translation of the sutra on the HT email
server; no mention of this concept that i saw.  btw, i have
seen spatika lingam which were not clear (milky quartz).

aum
sadhu