276. Rim'd clay top of St Ives Filled by white Chlora which near base has small shells suggesting Spinger Type. The rock is vertical near the base. 277. Fine grained bl well bedded, crowned by whitish l. 278. Great thickness of argillite l. At least 25 ft thick. 279 Lithothamnium cylindricale 280 Two feet of Spenger chalk here contains quartz granules up to 1/32 inch, but very few fossils and there are not characters; die. Recognized lith Argillaceo by comparison with Wallbridge section - 100 ft N.S.G.S. 4 ft arg clay Reddish smartly n chalk nodules, such as seen at top of Warrids dirty section, at Marcthury, 281. No trace of Spenger. 4ft 8 ft clay <- Top of reddish chalky nodule layer 3 ft interval from top of chalky layer down. 1/2 ft l. = Harwood burg. 5 1/2 ft. interval, 1ft <- Considerable chalk firmly in place. 50 ft interval in the St Ives free stone ledge about 3 ft thick near middle. Rim'd level. Lamsted. 282. 1/3 feet of freestone about 2 ft above roadman level. At a higher level, on the smit face of the tunnel cut, an upper freestone, much thicker, shows 283. One the upper freestone c.lbc 284 which is about 8 ft thick, comes down to track level. 284. Great thickness of St Ives & Tunnel 3 1/2 ft more massive l. R> 5 ft massive arg rock, some chalky 1 ft thin layers, weathering clayey, 3 1/2 ft Massive rock, Spinger Revival 9 ft massive rock, crinoidal + free life worms locally and important as in Harwood burg occasionally on upper horst side + Rhupidomella dubia, about Wallbridge rock. R> No trace of Spenger here. 285 Narrow gap over to Big Hill, 6th Sandy face of St Ives with 2 mm grains. 32 m diameter = Spenger. 8 ft Interval = yellowish rock reddish nodules very frequent as onones, same as below older Spenger sections. No trace of Harwood burg. nor massive sandstone.