.■ Correspondence — G. W. Lami^lugh. 237 



BEIDLINGTON CRAG. 



Sir, — The shelly patches in the Basement Boulder-clay at 

 Bridlington, known as the " Bridlington Crag," have been so long 

 inaccessible that it may interest glacial geologists to know that these 

 beds are being temporarily exposed in the foundations for a new 

 sea-wall. It is now twenty-one years ago since these shelly patches 

 were last seen, in a brief exposure on the foreshore, and when the 

 new wall is built they will be more hopelessly hidden than ever. 



The excavations are carried on between tide-marks, in short 

 lengths which are filled in at once. The section which I saw three 

 weeks ago during a hasty visit to Bridlington showed about 5 feet of 

 Boulder-clay with narrow streaks and dabs of richly glauconitic 

 sand full of broken shells. I learn that, in other places, larger 

 patches of the sand, with some unbroken shells, have been found, 

 like the masses which I saw and described in 1882-o. 



It is satisfactory to be able to add that the East Yorkshire 

 geologists are alive to the opportunity, and are taking steps to 

 secure material for the further study of this exceptionally interesting 

 Arctic fauna. G. W. Lamplugh. 



Dublin. 



OBITTJJk.1?,^". 



LIEUT.-GENERAL CHARLES ALEXANDER McMAHON, 

 F.R.S., F.G.S. 



BoRX Mahch 23, 1830. Died Fekruauy 21, 1904. 



We regret to record the loss of an excellent geologist and petro- 

 logist, and a prominent Fellow of the Geological Society of London. 



The name of General McMahon suggests the thought of the 

 number of Arm}'^ officers who have taken up our science as a pursuit 

 and achieved distinction, either in geology, palaeontology, or in 

 mineralogical geologj^ often without any early scientific training, 

 as was the case with General McMahon. We recall the names 

 of General Portlock, Sir Roderick Murchison, General Strachey, 

 General Sir Proby T. Cautley, General Hardwicke, General F. T. 

 Hobson, Colonel Godwin- Austen, Captain Hutton, Major Brickenden, 

 Major Broom, Captain H. G. Lyons, Dr. Leith Adams, and many 

 others. How great would be the list if our cadets at Woolwich, 

 Sandhurst, and elsewhere were encouraged to work at such subjects 

 by means of lectures, laboi'atories, museums, and field-work, pro- 

 ficiency to be rewarded by suitable marks in examinations ! 



Charles Alexander McMahon was born at Highgate 23rd March, 

 1830, and was the son of Captain Alexander McMahon, of the 

 H.E.I.C. Service. He served for eight years in the 39th M.N.I., 

 and for thirty years on the Punjab Commission. He was late 

 Commissioner of Lahore and a Fellow of Lahore University. 



Although, outside his official life, Lieut.-General C. A. McMahon 

 was well known as an ardent and able geologist, his name is 



