New Publications. 435 



stratified rocks of the coal-fields. Om- author has also been 

 at great pains in collecting, from the best sources, numerous 

 facts illustrative of the characters of our coal-mines, their 

 mode of working, quantity of coal raised, and the moral and 

 domestic condition of the collier population. To the miner 

 and geologist, the numerous tables, drawn up with great care, 

 will be received as useful contributions. The map, although 

 on rather too small a scale, is valuable. Throughout the 

 memoir there is a good deal of ingenious discussion, intend- 

 ed, we believe, more for the speculative geologist than the 

 miner. Mr Milne's estimate of Mr Williams, the author of 

 the " Mineral Kingdom;' and of some other labourers in this 

 geological field, we hold to be incorrect. 



7. Zoology of the Voyage of H. M. S. Beagle, under the command of Cap- 

 tain Fitzroy, during the years 1832 to 1836. 4to. Smith, Elder, and 

 Companj', London. 



The number of this work now before us, the last published, 

 is No. IV. of Part II. of the Mammalia, which completes the 

 natural history of the mammiferous animals met with during 

 the voyage. The natural history of the species of the genus 

 Mus, part of which was given in a former part, is here finish- 

 ed, twenty-eight species being described, and beautifully fi- 

 gured. To these follow the natural history of three species 

 of the new murine genus, named Reithrodon. Species of 

 several genera of the sections Hystricina and Leporina are 

 described, and with these this first and elegant volume of the 

 zoology of the Beagle is finished. 



8. An Etymological and Explanatory Dictionary of tfie Terms and Lan- 

 guage of Geology. By George RonEiiTS, 12nio, pp. 183. London, 

 Longman, Ormc, Brown, Green, and Longman, 1839. 



This useful little volume we recommend to oiu- young geo- 

 logical friends ; even those advanced in the study may refer 

 to it with advantage. 



9, Principles of General and Comparative Physiology, intended as an In- 

 troduction to the Study of Human Physiology, and as a Guide to the 

 philosophical pursuit of Natural History. By W. B. Carpenteb, 



