556 REPORT— 1898. 



Great Coates. — Heap of pebbles neai* the Station included : — 



1 Basalt (like loadstone) ; 1 rhomb porphyry ; 1 red granite; 1 grey granite; 

 1 Oolitic limestone. 



JVear Mr. Cordeaux's house — 



1 Limestone much weathered ; 1 crystalline limestone ; 1 micaceous lime- 

 stone ; 2 schists ; 1 rolled porphyritic granite trawled from the Dogger 

 Bank. 



In Pit by Railway Station.— 'S>maX\Qv rolled pebbles including : — • 



1 Schist ; 2 micaceous sandstones ; 1 crystalline limestone. 



Humherstone — 



5 Whin sill ; 1 basalt ; 4 grey sandstone ; 1 quartzite. 



Bradley Wood — 



3 Whin sill, 

 Bradley — 



2 Quartzites ; 2 white sandstones ; 1 granite ; 3 yellow sandstones ; 1 basalt ; 



1 ' Blue stone.' 



Aylerhy — ■ 



5 Whin sill ; 1 pale sandstone ; grey granite ; red granite. 



■Structure of a Coral Reef. — Report of tlie Committee, consisting of 

 Professor T. Gr. Bonney {Chairman), Professor W. J. Sollas 

 (Secretary), Sir Archibald Geikie, Professors J. W. Judd, 

 0. Lapworth, a. C. Haddojs", Boyd Dawkins, G. H. Darwin, 

 S. J. HiCKSON, and Anderson Stuart, Admiral Sir W. J. L. 

 Wharton, Dr. H. Hicks, Sir J. Murray, Drs. W. T. Blanford, C. 

 Le Neve Poster, and H. B. Guppy, Messrs. P. Darwin, H. 0. 

 Forbes, G. C. Bourne, and J. W. Gre&ory, Sir A. R. Binnie, 

 and Mr. J. C. Hawkshaw, appointedj to consider a project for 

 investigating a Coral Reef by Boring and Sounding. 



The boring into the coral reef at Funa Futi, under the superintendence 

 of Professor Edgeworth David, was carried down to a depth of 643 feet. 

 After he had quitted the island to return to Sydney the work was 

 ■continued until, owing to a breakdown of the apparatus, it finally ceased 

 .at a depth just short of 700 feet. The cores obtained during the work 

 have been forwarded to England, and are now being worked out under 

 the supervision of Professor Judd in the laboratory of the Royal College 

 of Science at South Kensington. A brief summary of the results down 

 to 643 feet was presented to the Royal Society on November 25, 1897, 

 and will be found in their ' Proceedings,' According to the survey of 

 Funa Futi and the neighbouring seas made by Captain Field, of H.M.S. 

 •* Penguin,' it appears that tlTe shape of the former is that of a cone with a 

 rudely elliptical base rising with a gradual slope from the ocean floor at 

 a depth of about 2,000 fathoms, and forming a kind of mural escarpment 

 for the last 750 feet (approximate). When the whole party had returned 

 to Sydney, Professors David and Stuart, after discussing the question of 

 •renewing the attempt to pierce the reef, the bottom of which, from the 

 •change of slope mentioned above, they thought must lie within SOO feet of 



