It is available at archive.org (https://archive.org/details/grammatikhrsgb00paniuoft). Please let me know if you cannot access it. I can upload it to Dropbox for you.

Elliot

On 23 Nov 2017, at 11:13, Krishnaprasad G via INDOLOGY <indology@list.indology.info> wrote:

Otto von Böhtlingk