170 Geological Society : — 



channeled spectrum is really the only true representation of" 

 dispersive gradation. Until this can be unquestionably 

 demonstrated, the use of the sun with the sensitive-strip 

 system must be relied upon on account of its greater sensi- 

 bility and adaptability for any spectral study. 

 Physical Laboratory, 

 University of Nebraska, Lincoln. 



XII. Notices respecting JS^ew Books. 

 Naturlehre. Von Dr. Alois Earner. Mit 377 Figuren, einer 



Spectraltafel und -i meteorologischen Karten in Farbendruck. 



"Wien : Verlag der Jos. Roth'schen Verlagsbuchhandhmg. 1902. 



Pp. 377. 

 The task of writing an elementary text-book of reasonable size 

 which should contain a brief account of all the branches of physics 

 (including the elements of astronomy) and chemistry is a somewhat 

 formidable one, and we must congratulate the author on its suc- 

 cessful accomplishment. Wisely abstaining from trying to confront 

 his reader with an unmanageable mass of facts, the author makes 

 a careful selection of such phenomena as serve to illustrate and 

 bring home to the mind of the student the leading principles of 

 modern science. 



£r spite of its elementary nature, the book is thoroughly up to 

 -date, i^id the interest of the reader is maintained by frequent 

 references to the numerous practical applications of the principles 

 dealt with in the book. 



There is a peculiar interest attaching to this work. It has been 

 written along the lines laid down by the Austrian Ministry of 

 Education for the guidance of teachers in the State secondary 

 schools or " gymnasia.'" A boy who has mastered the contents of 

 this book has certainly obtained a good insight into physical science, 

 and is splendidly equipped for the subsequent training in a tech- 

 nical college or university. One cannot help thinking how much 

 easier the work of higher technical education would become in 

 England, if only every secondary school were to put its pupils 

 through some such course as that contained in the book under 

 review. 



XIII. Proceedings of Learned Societies. 



GEOLOGICAL SOCIETY. 



[Continued from vol. iv. p. 520.] 



May 28th, 1902.— Prof. Charles Lapworth, LL.D., F.R.S., 



President, in the Chair. 



THE following communications were read : — 

 1. 'The Red Sandstone-Rocks of Peel (Isle of Han)/ By 

 William Boyd Dawkins, M.A., D.Sc, F.R.S., F.G.S., Professor of 

 Geology in Owens College (Victoria University), Manchester. 



The Bed Sandstone Series, ranging along the coast from Peel to 

 Will's Strand, is faulted into the Ordovician massif of the Isle of 



