रतिरहस्य: असली कोकशास्त्र (पण्डित कोक्कोक - कामकला, दाम्पत्य-जीवन एवं सम्पूर्ण रति-विज्ञान)

ऽ)
Wait, Vasantatilaka begins with ऽ ऽ । ऽ.
Here:
"गलदतिविपुलोष्ठी दुःखसाध्या प्रयोगे"
ग-ल-द-ति (। । । ।) -> Aparavaktra?
No, it's:
न न र र?
Wait, whatever the meter, we are transcribing the exact printed text, not reconstructing the original meter!

Let's read line 17-21 carefully again:
Line 17:
"द्विगुण-कटुकषायप्रायभुग् वीतलज्जा ।"
Wait, notice the space between भुग् and वीतलज्जा: yes, there is a space.
Notice the hyphen after द्विगुण: "द्विगुण-".
Wait, look at भुग्: 'भु' followed by 'ग्' with halant/virama.

Line 18:
"ललदतिविपुलोष्ठी दुःखसाध्या प्रयोगे ॥"
Wait, is it "दुःखसाध्या" or "दुःख साध्या"?
There is a space: "दुःख साध्या" or "दुःखसाध्या"?
Look at 'दुःख' and 'साध्या': they are joined or spaced?
There is a small gap, let's look: "दुःख साध्या" - wait, there is a space between 'दुःख' and 'साध्या'. Look at line 18:
"ललदतिविपुलोष्ठी दुःख