The title for this lecture is taken from the Ritual. It is an instruction to every candidate prior to the communication of the Sāā and is really an injunction to him, to see that proper care is exercised in performing the various movements so they will be in strict conformity with Craft education.
Title
1953 - "ALL SQUARES, LEVELS AND PERPENDICULARS ARE TRUE AND PROPER SIGNS BY WHICH TO KNOW A FREEMASON" - Edgar C. Hurdsfield.