17. University of Pennsylvania, Ms. Coll 390, Item 2830 Title: Taittirīyopaniṣadbhāṣyavyākhyā Author: Acyutakr̥ṣṇānandatīrtha Date: circa 1700-1850.
18. University of Pennsylvania, Ms. Coll 390, Item 2821 Title: Prayogadīpikākārikā Date: circa 1700-1850.
19. University of Pennsylvania, Ms. Coll 390, Item 2820 Title: Taittirīyāraṇyakabhāṣya Author: Sayana Date: circa 1700-1850.