OUtnanj — Dr. H. B. Geinitz, 477 



resting upon limestone was exposed. The ' till ' reached a thick- 

 ness of at least 40 feet in places, and rested upon a striated floor of 

 limestone rock. The Boulder-clay is a tough reddish or bluish 

 deposit, with streaks or patches of sand, sandy gravel, or sandy clay. 

 The whole deposit is thickly studded with boulders, both large and 

 small, most of which are finely polished, striated, and grooved. 

 Limestone, gritstone, sandstone, and quartzite are the most common 

 rocks, but toadstone and various greenstones and granites are by 

 no means rare. On the last occasion on which we visited the 

 quarry we found that the clay had been cleared oif the limestone 

 over a large area, exposing a floor finely striated, polished, and 

 grooved over its whole extent. The striations run N. 20° W., 

 indicating an ice-flow coinciding roughly in direction with the 

 neighbouring Derwent Valley. Mr. Arnold-Bemrose and I have 

 been at work for some years examining the numerous Boulder-clay 

 deposits and erratics this ice-flow has left behind it at points higher 

 up the valley than Crich, and we hope to be in a position to deal 

 somewhat fully with the glaciation of North Derbyshire in the near 

 future. The deposits formed by the ice which crossed the watershed 

 into the Wye Valley near Buxton have already been traced over 

 large areas south of the Trent. In these deposits tlie boulders are 

 " such as would be brought down by glaciers descending the 

 valleys of the Wye, Derwent, and other northerly and westerly 

 tributaries of the Trent, debouching into and crossing the valley 

 of the latter river." ^ E. M. Deelky. 



38, Charnwood Street, 

 Derby. 



OBITTJ.A.ia'Y. 



PROFESSOR HANS BRUNO GEINITZ. 



Born October 16, 1814. Died January 28, 1900. 



H. B. Geinitz was born at Altenburg on October 16, 1814, and 

 studied at the Universities of Berlin and Jena, taking the degree of 

 Ph.D. in 1837, with a thesis on the Muschelkalk of Thuringia. He 

 went to Dresden in 1838 to take part in the work of the Eoyal 

 Technical High School, in which he became Professor of Mineralogy 

 and Geognosy in 1850, maintaining his connection with that 

 establishment until 1894. In 1857 he was made Director of the 

 Eoyal Mineralogical and Geological Museum, which post he also 

 held until 1894. His work related chiefly to Saxony, and to it 

 we are specially indebted in regard to the palasontological relations 

 of that kingdom, but it also extended over other parts of Europe. 

 Amongst his more notable works are those on the Fossils of the 

 Coal-measures of Saxony, on the Cretaceous Formations of Saxony, 

 comparing them with those of England, on the Animal Eemains 

 of the Dyas, and on the Elbthalgebirge of Saxony, and these are 

 the more valuable from being well illustrated. He was one of the 

 editors of the "Neues Jahrbuch fiir Mineralogie und Geologie " from 

 1 Q.J.G.S., 1886, p. 440. 



