476 Reviews — Brief Notices. 



The Manchester Museum has arranged the " Mark Stirrup " 

 collection, a series of Coal-measure plants from the Radstock series, 

 and is now taking in hand the Cretaceous collection, which was sadly 

 in want of attention. Among noteworthy accessions is the Thomas 

 Parker collection of Carboniferous fishes and Brachiopods, containing 

 types figured by Mr. J. W. Davis and Dr. Thos. Davidson. The 

 geological library has been enriched by Mr. Stirrup's books, and 

 a large collection of stone implements presented by Mr. E.. D. 

 Darbi shire. 



The Museum of the Yorkshire Philosophical Society lias appointed 

 the Eev. "W. Johnson as curator in the place of the late J. F. Walker. 

 The Tertiary fossils have been re-labelled, but we hope the original 

 labels have in every case been kept. The geological department did not 

 receive a single accession during 1907-8. The "Keport" is mainly 

 archaeological, save Dr. T. Anderson's paper on the Volcanoes of 

 Guatemala, which has been reprinted from the Geographical Journal. 



Rugby School Museum has acquired, through the generosity of the 

 Hon. E. C. Fraser, a collection of bones of the Dodo and the Solitaire. 



We learn from the Naturalist that Beverley in Yorkshire will 

 soon have a local museum. 



4. Ice. — Mr. J. G. Buchanan's lecture on Ice to the Royal Institution 

 of Great Britain in May last has now reached us. Full of suggestive 

 and interesting matter and well illustrated, we can only find room to 

 call attention to the chief headings dealt with. These are the nature 

 of the ice formed by freezing saline solutions ; the distinction between 

 the melting-point of a substance and the temperature at which it 

 melts under given conditions; the influence of salt in inducing the 

 melting-point of ice ; cryoscopic equivalence between pressure and 

 salinity ; influence of impurity on the apparent latent heat of ice ; 

 glacier gi'ains ; their size ; sun-weathering of granular ice produces 

 white surface of glacier ; snow neve and glacier ; lake ice ; its grain ; 

 characteristics of an advancing glacier ; grooving of ice by rock ; and 

 external work of a glacier. The author concludes his printed lecture 

 with an explanation of " the real region of mechanical erosion and 

 attrition is the seashore," with a note on the advantage of study of 

 tropical lands, and refers to the ' Crumble ' formation. He lays 

 down the law that "the chemical action of atmospherical moisture 

 and the tendency of every part of a mountain or rock to yield to 

 gravity when not adequately supported, suffice to account for all the 

 degradation of rock which we observe." Excellent photographs of 

 granular ice, of a stream-bed after three rainless years and on the 

 same day but after a violent rainstorm, and of the chemical and 

 gravitational degradation of the mountain slopes at the back of 

 Antofagasta, Chili, where the landscape consists of a succession of 

 taluses in a rainless district, are given. 



5. Geological Survey of New Jeksey. 



Annual Report of the State Geologist for the Year 1907. 8vo ; 



pp. 192. Trenton, N.J., 1908. 



The bulk of this volume is occupied with J. V. Lewis' Petrography 



of the Newark Igneous Rocks, illustrated by many plates of field 



