These comments were recorded in a highly abbreviated code, since space was limited. As an additional cross - checking tool, they marked the middle word and letter of certain books.
अतिरिक्‍त प्रति - जाँच के साधन के रूप में, उन्होंने कुछ पुस्तकों के बीचवाले शब्द और अक्षर को चिन्हित किया ।