The affix ṣṭhal comes in the sense of 'he goes on by means thereof' after the word ākarṣa,
This debars ठक् ॥ The ल् is for accent (VI. I. 193). The ष of ष्ठल् here is a part of the affix, contrary to what it was in sutra 7 ante. To remove the doubt where ष is the part of an affix, and where it is not, the following mnemonic verse has been composed : \आकार्षत् पर्पादेभस्त्रादिभ्यः कुसीदसूत्राच्च, आवसथात् किक्षरादेः षितः षडेते ठगधिकारे ॥ In the six Sutras 9, 10, 16, 31, 74, and 53, the affixes have indicatory 'sh' Here ष being इत्, the feminine is formed by ङीष् 4.1.41. Thus आकर्षेण चरति = आकर्षिक f. आकर्षिकी ॥ आकर्ष is a touch-stone by which gold is tested.,