Vol. 65.] ANNIVERSARY ADDRESS OF THE PRESIDENT. lxxix 



papers to our Society. His best-known work is a volume on Mine- 

 Surveying, published in 1888, which has now reached the thirteenth 

 edition. In 1907 he published a revised edition of Sir Clement 

 Le Neve Foster's ' Ore & Stone-Mining.' 



Mr. Brough was a man of great ability and indefatigable 

 industry, ardently interested in his work and generously appreciative 

 of the work of others. 



Sir Thomas Wardle (1831-1909).— Thomas Wardle was bom 

 •at Leek, on January 26th, 1831. He was educated at the 'local 

 grammar-school and at Macclesfield. At an early age he entered 

 into business connected with the silk-industry, which he afterwards 

 did so much to promote. He was the first to discover a satisfactory 

 process for dyeing the wild tussore-silk of India; he was com- 

 missioned on several occasions by the Government to investigate the 

 sericiculture of India, and he revivified the moribund silk-industry 

 of Kashmir. He wrote numerous works on sericiculture and silk- 

 weaving — subjects on which he was the acknowledged authority. 

 ' Kashmir and its Silk-Industry ' appeared in 1904. He was 

 President of the Silk Association of Great Britain & Ireland, and 

 honorary expert on silk to the Imperial Institute. 



In 1879 he was appointed Chevalier of the Legion of Honour, 

 and was invested with the Knight Commandership of the Indian 

 Empire in 1897. 



Sir Thomas was elected a Fellow of the Geological Society in 1863 ; 

 he was a member of the Council of the Palseontographical Society, 

 and more than once President of the North Staffordshire Naturalists' 

 Field-Club. He was keenly interested in the geology of the 

 country around Leek, and wrote several papers on it, of which ' The 

 Geology of the Neighbourhood of Leek ' (1863), ' The Geology of 

 the Poaches ' (1868), and ' Limestone, its Occurrence, Nature, & 

 Origin ' (1873), are best known. "When the Geologists' Association 

 visited North Staffordshire, in 1890, he acted as Director on some 

 of the excursions, and delivered an admirable address on the 

 Yoredale Pocks and the Carboniferous Limestone. He was the first 

 to discover the microscopic quartz-crystals which occur in the lime- 

 stone to the extent of 0*6 per cent, of its weight. 



He married, in 1857, Miss Elizabeth Wardle, who died in 1902 ; 

 and he had a family of nine children. He died on January 5th, 

 1909. 



