90 Geographical Notices. 
saved, and the neighboring bank became the head-quarters of — 
the expedition for a whole year. The rocks forming the banks 
of the river where the shipwreck took place are composed of 
highly-inclined strata of hard sandstone. All the specimens of 
this rock which I have examined, whether brought home by — 
‘Mr. May or sent by the Admiralty, belong to the same light 
colored, hard, sub-crystalline, pinkish sandstone, with very fine 
flakes of white mica; the successive layers (which are much fo- 
lated) being strikingly covered by thin elongated crystals of 
black tourmaline. The rock has altogether the appearance of 
having undergone considerable metamorphosis, and much eleva: — 
tion and disturbance. Geodes of pure white quartz, with large — 
micaceous coatings, also oceur. As soon as the party had be 
come somewhat settled, it was determined to make a direct over 
land communication by Yéruba with Lagos, and Mr. May offer 
ing himself for this service, accomplished it satisfactorily, as ex 
seer in a notice laid before the Society. In the mean time — 
leut. Glover made journeys up the river, visiting Wawa an 
Busa, and definitely ascertained the impracticability of navigr 
ting the river fora few miles beyond the spot of the encamp 
ment, a waterfall at Waru being an impassable barrier even for 
canoes in any season. , 
“Mr. May having waited on the sea-coast, expecting another 
steamer from England, at last returned to the encampment 
through Yéruba, and then set out on a more extended journey, 
with a view to ex 
La : 
thence on the north side of the river through Nu aie 
4leutenant Glover had during this time also visited 
coast by Mr. Ma i 
relief of the party. Dr. Baik 
expedition had been. chiefly employed during the year in cu” 
