“ Reason cannot fill
But in the angles it is empty still.
The square of Truth this will it testify
And the Cross will this World truly fye!
Then may Man’s Heart enjoy the globe that will
Within the Soul and empty angles fill
For it satisfies the hungry Soul of Man
As nothing in this round World can.”
 This is part of a paraphrased version of the poem, ‘The Round World, the Heart, the Cross, the Angles and the Square’, which appears at the front of Collyer’s collation of Brierley’s sermons at Lambeth Palace Archives and which seems to have been given no academic attention. The poem is marked as Collyer’s own work as would appear to be the symbol above it. The symbol is superficially similar but actually far from identical to either that which appears alongside Webster’s last resting place. The variant at the end of Sloane 2538 (the Brierley-Tennant Theologia) is far more simplistically geometric and plays on the six pointed Star of David symbol and has been ignored for the purposes of this book. Nevertheless, all three exhibit a fascination for sacred geometry.