The Pamphlet Collection of Sir Robert Stout: Volume 54

2185 ÷ 51.8504 × π ÷ 2 ÷ 6 = 11.0525} ... = 1542in. 11.0525 × 8 ÷ 100 × 4 ÷ π × 1369.5} equals the length of this passage. 1302.983 × 3 × 2 ÷ 100 ÷ π × 61.83 ... ... = 1542in. and 2739 ÷ 1542 × π × 7÷3 × 100 ... ... ... = 1302.07 equals the length of the arm ±, as is symbolised by the Horizontal Passage floor

2185 ÷ 51.8504 × π ÷ 2 ÷ 6 = 11.0525} ... = 1542in. 11.0525 × 8 ÷ 100 × 4 ÷ π × 1369.5} equals the length of this passage. 1302.983 × 3 × 2 ÷ 100 ÷ π × 61.83 ... ... = 1542in. and 2739 ÷ 1542 × π × 7÷3 × 100 ... ... ... = 1302.07 equals the length of the arm ±, as is symbolised by the Horizontal Passage floor.