Correspondence — Dr. C. Callaway. 379 



demanded that he should give away the credit for the " larger 

 share of the work." I did not anticipate, when I saw the note 

 appended by him to our joint paper, that it could be misinterpreted 

 to mean that, because Professor Bonney had not seen or re-examined 

 certain sections (many of them supplementary), therefore he had not 

 seen sufficient to draw his own conclusions. To those who know 

 his work this statement must seem unnecessary. 



Catherine A. Eaisin. 



ON A QUAETZITE AND SYENITE EOCK IN WOECESTERSHIRE. 



Sir, — The valuable note by Mr. Charles St. Arnaud Coles in your 

 July number (p. 304) suggests several questions of interest to 

 students of Malvernian geology. I can quite confirm his descriptions 

 in a general way, as I have visited Martley, and collected specimens 

 of the rocks. The so-called syenite is an altered form of one of the 

 Malvern diorites, the biotite and quartz being of secondary origin ; 

 but, as the modifications undergone by these diorites have been 

 described in my series of papers on the Malvern Hills (Quart. 

 Journ. Geol. Soc, August, 1887, August, 1889, and August, 1893), 

 I need not here discuss them. The chief point of interest is the 

 relation of the quartzite to the Malvernian. Mr. Coles compares 

 the former with the quartzite of the Lickey. He might with equal 

 probability have included in his correlation the basal Cambrian 

 quartzite which clings like a blanket round the Malvernian and 

 Uriconian masses of Shropshire. Whether this quartzite occurs in 

 the Malvern chain I cannot say from personal knowledge; but, in 

 the well-known section at the southern end of the Kaggedstone Hill, 

 the Hollybush Sandstone is thrust over the upturned edges of the 

 contorted gneiss, and the quartzite is wanting, its absence being 

 probably due to dislocation. C. Callaway. 



July 15, 1898. 



PROFESSOR GEORG BAUR, Ph.D. 



Born Januaky 4, 1859. Died June 25, 1898. 



We deeply regret to record the death of Dr. Georg Baur, of the 

 University of Chicago, at the early age of 39 years. He was born 

 at Weisswasser, in Bohemia, where his father was at the time 

 Professor of Mathematics ; but he spent the greater part of his youth 

 in Hesse and Wiirtemberg. He passed through the Gymnasium at 

 Stuttgart, and in 1878 entered the University of Munich, where he 

 devoted special attention to zoology, palajontology, geology, and 

 mineralogy. In 1880 he went to Leipzig, where he studied under 

 Credner and Leuckart. Two years later he returned to Munich and 

 took the degree of Ph.D. He remained at this University as assistant 

 to Prof, von Kupffer until 1884, when he left for America and 

 became assistant to Professor Marsh at Yale. Dr. Baur held this 

 appointment until 1890, when he removed to the Clark University, 



