3-58 Watts and Newton — Bocks from Solomon Islands. 



cliff, Southwokl. I have again bad the opportunity of examining 

 the fine sections at Westleton, where the shingle is imbedded in 

 buff sands, and presents an aspect quite different from that of the 

 Bure Valley Beds of the Norfolk area and from the Crag Series at 

 Southwold. Following the beds to the cliffs at Dunwich, they are 

 seen to rest on a mass of buff sands, more like Middle Glacial Sand 

 than anything else. 1 Where gravels and sands of variable character 

 and different ages come together there is abundant room for 

 diversity of opinion, and those who peruse Mr. Whitaker's Memoir 

 on the Geology of Southwold will find a clear statement of the 

 facts and of the conflicting views with regard to their interpretation. 

 During my visit to Southwold in the summer of 1895, the Crag 

 was well exposed at the base of the low cliffs at Easton Bavent, 

 but, while collecting a number of fossils, only one form pro veil 

 to be new to the locality, and that was a tooth of Microtns 

 (Arvicola), the identification of which was kindly verified by Mr. 

 E. T. Newton. 



VII. — Notes on some Bocks from the Solomon Islands. 



By "W. W. Watts, M.A., F.G.S. ; with notes by E. T. Newton, F.R.S. 



[Communicated by permission of the Director- General of the Geological Survey.] 



AFTER he had published his account of the geology of the 

 Solomon Islands, 2 Dr. Guppy was good enough to present to 

 the Museum of Practical Geology a series of typical specimens 

 showing the chief varieties of calcareous and argillaceous deposits met 

 with in the islands. This collection includes rocks, washings, 

 picked organisms, with a few microscopic slides, and it constitutes 

 a series very valuable for reference. 



During the surveying of the islands by the Admiralty in 1893-5, 

 Lieut. A. Waugh has been able to collect many specimens of 

 volcanic and sedimentary rocks, which have also been presented to 

 the Museum. As some of these were collected at localities not 

 visited by Dr. Guppy, and as a few of the types have not been 

 previously described from the islands, it may be worth while to 

 communicate to the Geological Magazine a short account of Lieut. 

 Waugh's collections. 



I. — The Sediments. 

 The classification adopted by Dr. Guppy for these rocks may be 

 briefly summarized as follows. For further details the reader is 

 referred to the original paper. 



As Volcanic debris mixed with organic remains and resembling 

 the muds now forming round oceanic, volcanic islands. 

 (a) 5-20 per cent, of Ca C O s , minute foraminifera, and a few 



mollusca. 



1 See H. B. W., Geol. Mag. 1882, p. 455. 



2 " The Solomon Islands, their Geology, General Features, and Suitability for 

 Colonization," by H. B. Guppy, M.B., F.G.S. (Loudon, 1587): Trans. Roy. Soc. 

 Edin., vol. sxxii (18S7), p. oio. 



