Vol. 52.] ANNIVERSARY ADDRESS OF THE PRESIDENT. lxXVU 



Luis Potosi ' (see Geol. Mag. 1895, p. 522), the ' Antropologia 

 Mexicana,' ' El Hombre del Perion ' (Mexico, 1885, 8vo), also of 

 numerous other memoirs and a large number of excellent geological 

 maps. He died in Mexico city on October 22nd, 1895. He was in 

 England at the Meeting of the International Geological Congress 

 in 1888, and Commissioner for Mexico at the International Mining 

 and Metallurgical Exhibition at the Crystal Palace, Sydenham. 

 He was elected a Foreign Correspondent in 1891. 



Philip Henri Lawrence was born in Liverpool in 1822, and 

 was admitted as a solicitor in 1848. He took an active part 

 in forming the Commons Preservation Society, and acted as its 

 solicitor until he ceased to practise in that branch of the profession. 

 In 1872 Mr. Lawrence was called to the Bar at Lincoln's Inn. He 

 had been elected a Fellow of the Geological Society in 1866. 



He was the translator of Bernard von Cotta's « Lithology,' a 

 well-known handbook on rocks. Mr. Lawrence died at 8 Koyal 

 Crescent, Brighton, on October 17th, 1895. 



Captain Charles Tyler, F.L.S., was born in London in August 

 1826, and was educated at University College. 



He was a man of scientific tastes, an ardent microscopist, and a 

 member of many learned societies. He joined the Microscopical 

 Society in 1858, was elected a Fellow of the Linnean Society in 

 1862, and of the Geological Society in 1863. He served for many 

 years on the Councils of the Paheontographical and the Ray Societies, 

 and was for some time a member of the Honourable Corps of 

 Gentlemen-at-Arms. 



Capt. Tyler gave valuable assistance to Dr. Bowerbank in the 

 examination of exotic sponges, when he was preparing his Monograph 

 on the British Spongidao for publication. He formed a large collec- 

 tion of fossils, and possessed many microscopes and a valuable 

 collection of slides. 



One of the chief interests of his life was his connexion with the 

 Orphan Working School, Haverstock Hill, to which he devoted 

 himself with characteristic energy and close personal attention 

 during nearly forty years. During his later years he gave much 

 attention to the administration of St. Thomas's Hospital, where he 

 served repeated terms of office as Almoner. 



Capt. Charles Tyler, who was in the 70th year of his age, died on 

 November 2nd, 1895, after a short illness, which, however, was the 

 climax of a long period of failing health. 



