676 Obituary — Captain Charles Tyler. 



Von Eebenr's last work was an endeavour to obtain co-operation 

 for the observation of these instruments throughout the world, a 

 scheme which, although he has not lived to realize it, will, in all 

 probability, be accomplished in the near future. His ability and 

 energy are testified by the works he leaves behind, and his modesty 

 and kindly nature are spoken of by all who knew him. J. M. 



Captain Charles Tyler, F.L.S., F.G.S., whose death on the 

 2nd November last, in his 70th year, we deeply regret to recoid, 

 was for very many years an active member of the Council of the 

 Palseontographical Society, and keenly interested in all microscopical 

 research. He also worked assiduously at the Protozoa with the late 

 Dr. Bowerbank, F.R.S. 



3^^ISC:E]XjXj.A.I5r:H!OTJS- 



A MOST useful " Bibliography of Midland Glaciology " has been 

 contributed by Mr. W. J. Harrison to the Proceedings of the 

 Birmingham Natural History and Philosophical Society (vol. ix, 

 1895). His record includes the titles of more than one hundred 

 and fifty papers, dating from the year 1811 up to the present time, 

 and written specially on the Drift deposits or glacial phenomena 

 of the Midland counties ; and he has added titles of over a hundred 

 other books and papers which have a more general bearing on the 

 subject. Nor has he confined his record to titles, for notes are given 

 on the contents of nearly every article. He remarks that singularly 

 little attention was paid to the Midland Drift by the officers of the 

 Geological Survey when they mapped the region in 1855-60. What 

 is now wanted is a detailed survey of the various accumulations of 

 Boulder-clay, Sand, and Gravel. 



" The Onyx Marbles : their origin, composition, and uses, both 

 ancient and modern," is the title of a Memoir by Mr. George P. 

 Merrill (1895. Reprinted from the Report of the United States 

 National Museum). The term onyx marble, as is well known, is 

 applied to varieties of travertine or stalagmite, which exhibit band- 

 ing and translucency that are often as pronounced as in the true 

 onyx. Used in ancient times for various ornamental purposes, and 

 known as " Oriental alabaster," the marble has been obtained in 

 Persia, Egypt, Algeria, Italy, Mexico, California, Arizona, and other 

 regions ; and it is largely used for interior decoration at the present 

 day. Mr. Merrill enters fully into the characters of the several 

 onyx marbles, and to their method of formation by springs in the 

 open and in caverns. His work is illustrated by 18 plates. 



Erratum, — In Di-. Gerhard Holm's article, November Number, 

 line 21 from top of page 482 : after the word "canal," insert a 

 full stop ( . ) ; then for " which," read What ; and in line 22, 

 for '' consisting " read consists. 



