Shores & bottom of the lake of clean round gravel. Water blue & very clear though perceptibly opalescent. Much drift wood at high water levels & evidence that lake varies very considerably with the season.

Geol. The beds examined all brought up by an irregular anticlinal which crosses the lake at the narrows. They underlie the beds designated Series 1 in former Section. The highest & that immediately underlying the latter is a limestone of some thickness (say at least between 50 & 100 feet) which weathers white. Where exposed near the fall it has cherty concretions in places. It also holds at least one thick band of Magnesian grit exactly like that called No. 2 in the General Section. This however is probably a merely local development.

Below the limestone & well shown on both sides of the lake S. of the narrows is a great series of hard beds which on weathered surfaces are coloured very remarkably in shades of bright browns & orange due possibly to dolomitic matter. They do not however effervesce with cold HCl. & are exceedingly hard, breaking even with a semi-conchoidal fracture. Internally they exhibit shades of purple & grey. They evidently represent metamorphosed mud rock & are very evenly stratified, layers several feet in thickness alternating with several thin flaggy beds very frequently. The whole substance of the rock shows regular stratification planes by variation in the tint. Rather low down in this series a limestone