vi PROCEEDINGS OE THE GEOLOGICAL SOCIETY. [May I907,. 



January 23rd, 1907. 



Sir Archibald Geieie, D.C.L., Sc.D., Sec.E.S., President, 

 in the Chair. 



The List of Donations to the Library was read. 



The following communication was read : — 



' On the Geolog3 T of the Zambezi Basin around the Batoka 

 Gorge (Rhodesia).' By George William Lamplugh, F.R.S., F.G.S. 

 With Petrographical STotes by Herbert Henry Thomas, M.A., B.Sc. r 

 F.G.S. 



The following specimens, maps, etc. were exhibited : — 



Specimens from the Zambezi Basin around the Batoka Gorge 

 (Ehodesia), together with photographs and lantern-slides, exhibited 

 by G. W. Lamplugh, F.R.S., F.G.S., in illustration of his paper. 



" Lantern-slides, exhibited by H. H. Thomas, M.A., B.Sc, F.G.S., in 

 illustration of the petrographical notes accompanying Mr. Lamplugh's 

 paper. 



Fossils from Mombasa and the neighbouring mainland, exhibited 

 by M. E. Frames, F.G.S., G. W. Lamplugh, F.R.S., F.G.S., and 

 H. B. Muff, B.A., F.G.S. 



The following specimens found in the 'Roberts Victor ' diamond- 

 mine, about 20 miles east of Boshof (Orange River Colony), were 

 exhibited by E. H. V. Melvill, F.G.S., namely : — I. Oxidized kimber- 

 lite, locally known as ' yellow ground.' II. ' Cyanite-garnet-rock. r 

 It is the only specimen, a portion of a small rounded boulder, 

 found in the mine ; but smaller pebbles are occasionally found. 

 An extract from a letter received from Prof. Dr. R. Beck, of 

 Freiberg, describing the specimen,, is printed in the Transactions 

 of the Geological Society of South Africa, 1906. III. Garnet-rock 

 found in the same mine ; the boulders are plentiful, and measure 

 occasionally 2 feet in diameter. 



Thirty-five quarter-sheets of the 6-inch Geological Survey-map 

 of Staffordshire, surveyed by G. Barrow, W. Gibson, T. I. Pocock, 

 & C. B. Wedd, 2nd editions, presented by the Director of H.M. 

 Geological Survey. 



February 6th, 1907. 



J. E. Marr, Sc.D., F.R.S., Vice-President, in the Chair. 



James Stanley Diggle, The Hollies, Heywood (Lancashire) ; 

 George Allan Frost, 16 Homesdale Road, Bromley (Kent); Richard 

 Samuel Johnson, Public Works Department, Cradock (Cape Colony) ; 

 Ezra Masillamani, B.A., B.Sc, A.R.C.S., Geologist to the Travancore 

 Government, Trivandrum (Southern India); William Dicks Shuard, 



