67 yards = 125 fut. 165 - one tr above Carter/lyers layer. This is measured alg A.B. 170 yards onne to end of guany from A_ layer. 407 125 402 6 div 6 750 fut thick at least. The entire thickness of the Karrangunk up to end of guany is not less than 750 fut. Adding what I saw along the rait- way (the higher beds) the total thickness is 900 fut or maybe a little more. I estimate [see beyond] that there are 1625 fut of other strata as to Hamilton. [Barrell tells me he has also measured this section. Compare mine with his]