+--------------------------------+-------+-------+-------+-----------+--------+ | | 13th | | | |Rate of | | | Mar. | |30 Oct.| Increase |Increase| | | 1873. | 1839. | 1845. | since | per | | |Inches.|Inches.|Inches.|1839.|1845.| annum. | | | | | | | | Inches | +--------------------------------+-------+-------+-------+-----+-----+--------+ | 1 Basal circumference at | | | | | |·2941- | | Gauges |128 |118 |120 | 10 | 8 | ·2857 | | 2 Gauge No. 1 to Gauge No. 2 | 52·625| | | | | | | 3 ” 2 ” 3 | 35·0 | | | | | | | 4 ” 3 ” 1 | 40·375| | | | | | | 5 Gauge No. 1 to hole in centre| | | | | | | | of basin at apex| 30 | | | | | | | 6 ” 2 ” ” | 29·5 | | | | | | | 7 ” 3 ” ” | 31·4 | | | | | | | 8 Height from Gauge No. 1 | 20·9 | | | | | | | 9 ” ” 2 min | 20·4 | | | | | | |10 Maximum | 29·7 | | | | | | |11 Tape measurement on slope | | | | | | | | Gauge No. 1 to edge of apex| 26·7 | | | | | | |12 ” No. 2 ” ” | 26·6 |21·0 | | 5·6 | | | |13 ” ” maximum ” | 36·0 |32·0 | 35·0 | 4·0 | 1·0 | | |14 Roof to apex of Jockey Cap | 87 | | 95·25 | | 8·25|·2946 | |15 Roof to tip of stalactite | | | 10 | | | | |16 Stalactite to apex of Jockey | | | | | | | | Cap | | | 85·25 | | | | +--------------------------------+-------+-------+-------+-----+-----+--------+