352 REPORT—1890. 
about fifty yards from highway, is a boulder, 4 ft. 2 in. x 3 ft. 6 in. x 
14 ft. It is subangular; it has been moved; there is a groove 4 in. 
deep and length of the stone. The boulder is striated at the top in dires- 
tion of longer axis; it is whinstone; probably 20 ft. above the level of 
the sea; it is isolated, resting on boulder clay. 
In the paddock at Winestead, belonging to the Park Farm, is a 
boulder 2 ft. 8 in. x 2 ft. 2in. x 1 ft. Itis much rounded ; it has been 
moved; it is mountain limestone; about 20 ft. above sea-level ; isolated ; 
it rests on the surface of the ground. 
Sixteenth Report of the Committee, consisting of Drs. E. HULL and 
H. W. Crosskey, Sir DouGLas GALTON, Professor G. A. LEBOUR, 
and Messrs. JAMES GLAISHER, E. B. Marten, G. H. Morton, 
W. PENGELLY, JAMES PLANT, J. Prestwicu, I. Roperts, T. S. 
STookE, G. J. Symons, W. TopLtey, TYLDEN-WRIGHT, E. 
WETHERED, W. WHITAKER, and C. E. DE Rance (Secretary), 
appointed for the purpose of investigating the Circulation of 
Underground Waters in the Permeable Fornvations of England 
and Wales, and the Quantity and Character of the Water 
supplied to various Towns and Districts from these Forma- 
tions. (Drawn up by C. E. DE Rance, Reporter.) 
Your Reporter regrets to record the death of Mr. R. W. Mylne, C.E., 
F.R.S., an original member of your Committee, being appointed in 1874 
at Belfast, where he assisted in drawing up the schedule of questions 
circulated by your Committee. Pressure of professional engagements 
prevented him taking charge of a district, but he was always ready to 
give the results of his life-long experience to elucidate a point or assist 
the work of your Committee. In 1839, more than half a century ago, he 
contributed to the Institution of Civil Engineers the first paper published 
in their Proceedings upon Artesian Wells. He was probably the first 
civil engineer who applied geological investigation to the elucidation of 
practical problems in engineering. He early saw the great importance 
of accurate levels being taken of the junction of permeable and imperme- 
able strata, and of the points at which it was proposed to sink wells. 
At his own cost he contoured the whole of the metropolitan area years 
before the appearance of the Ordnance Survey contoured maps, and 
published his Geological Map of the same area, while the Government 
Geological Survey were still engaged in the west of England. 
In his sections of the London Strata, published in 1850, he was the 
pioneer of the work now being done by your Committee in collecting well 
sections; and as regards the Metropolitan area, he laid the basis of our 
present knowledge of the nature of the water-bearing strata and their 
levels, in which latter information subsequent workers have often been 
exceedingly sparing. 
As hydraulic consulting engineer to the War Office, his geological 
knowledge enabled him in 1866 to confidently recommend the construction 
of the Horse-shoe Fort Well, the first of the Spit Head wells, which were 
the first wells sunk in the sea to obtain fresh water. In the necessary 
examination of the Isle of Wight preceding his Report, your Reporter 
acted as his assistant. 
