Oeological Society of London. 381 



Zenglodon Wanhlyni, Seeley, from the Barton Clay. The single 

 specimen in his possession was obtained at Eoydon, about a mile 

 and a half north of Brockenhurst, where the beds exposed in the 

 brickyard consist of sandy clays crowded with marine fossils, and 

 resting upon green freshwater clays, with abundance of Unio Solandri 

 belonging to the Headon series. The author briefly referred to the 

 question of the horizon of these deposits, which he regards as belong- 

 ing to the same great marine series as the beds of Brockenhurst and 

 Lyndhurst, which he holds to be Tongrian or Lower Oligocene. 



The Cetacean vertebra obtained by Prof. Judd was stated by Prof. 

 Seeley to be a caudal vertebra, probably the eighth, but not later 

 than the twelfth, of a species belonging, or closely related to the 

 genus Balcenoptera, and especially approaching Balcenoptera laticeps, 

 a species of the North Sea, which appears to range to Japan. Prof. 

 Seeley regarded it as representing a new species, which he named 

 Balcenoptera Juddii. 



3. " Description of a Peat-bed interstratified with the Boulder- 

 drift at Oldham." By G. H. Hollingworth, Esq., F.G.S. 



The author described a deposit of peat interstratified with Boulder- 

 drift, exposed in a railway-cutting at Rhodes Bank, Oldham. The 

 depth of the section was only 14 feet, and it showed : — 



1. Soil 8 to 10 inches. 



2. Boiilder-clay, with beds and strings of peat 2 to 6 feet. 



3. Main bed of peat, containing mosses, exogenous stems, 



and beetles 2 inches to 1 ft. 9 in. 



(average 15 inches). 



4. Fine blue clay (floor) 2 inches to 1 foot. 



5. Ciirrent-bedded coarse sand and fine gravel 4 inches to 2 feet. 



6. Boulder-clay. 



The mosses in the peat are of northern type. 



4. " Silurian [Jniserial Stomatoporce and Ascodictya,''' By G. R. 

 Vine, Esq. Communicated by Prof. P. Martin Duncan, F.R.S., F.G.S. 



For the genus Stomatopora the name Alecto has priority ; but as 

 that had previously been applied to a member of the class Echino- 

 dermata, the author preferred the later name. Species of the genus 

 have also been described under the generic name Aulopora. The 

 author has received from Mr. Maw more than two hundredweight of 

 washed debris of Wenlock shale, about thirty pounds of which, from 

 twelve localities, he has examined. It contains a moderate amount 

 of Polyzoan remains, generally water- worn. The author described 

 the following species : — Stomatopora inflata and dissimilis, Asco- 

 dictyon stellatum and radians (with a variety Siluriense), and dis- 

 cussed the characters of the genera. 



5. "Note on the Diamond-fields of South Africa." By E. J. 

 Dunn, Esq. Communicated by Prof. Eamsay, F.R.S., F.G.S. 



The passes or necks of decomposed gabbro, etc., at the Kimberley, 

 Bultfontein, and other diamond mines have now been excaA'ated to a 

 considerable depth, and have allowed excellent sections of the sedi- 

 mentary beds through which they have broken to be examined. 

 These are generally but little disturbed, and may be traced over an 

 area of many square miles. Immediately beneath the surface are, 



