168 A^eiv Booh. 



from subjacent granite into superincumbent rocks, arc 

 merely veins of granitic gneiss accidentally in contact witli 

 granite. 



XL. Intelligence and Miscellaneous Articles. 



NEW BOOKS. 



X ROFEssoR Jameson has just published the third volume 

 of his system of mineralogy, under the title Elements of 

 Geognosy. The contents of this important work arc as 

 follows : Chap. I. Description of the surface of the earth. 

 Chap. II. Effects of water on the surface of the earth. 

 Chap. III. Internal structure of the earth. Chap. IV. Ge- 

 neral account of the different formations, in regard to their 

 succession and stratification, and this illustrated by a short 

 description of the Hartz and Saxon Erzgebirge. Chap. V. 

 Theory of the diminution of the waters of the globe— De- 

 scription of overlying formations. — An investigation of the 

 original contents of ihe waters of the globe, during the diffe- 

 rent periods of the earth's formation — The division of rocks 

 into five classes. Chap.VI. Class 1. Primitive rocks. Chap. 

 VII. Class 2. Transition rocks. Chap. Vfll. Class 3. Fl^tz 

 rocks. Chap. IX. Class 4. Alluvial rocks. Chap. X. Class 

 5. Volcanic rocks. Chap. XL Mineral repositories. Chap, 

 XII. Relative age of metals, viz. 1. Molybdaena. 2. Me- 

 nachine. 3. Tin. 4. Schiele. 5. Cerium. 6. Tantalum. 

 7. Uren. 8. Chrome. 9. Bismuth. }0. Arsenic. ]1. Co- 

 balt. 12. Nickel. 13. Silver. 14. Copper. 15. Gold. 

 16. Sylvan. 17. Antimony. 18. Manganese. 19. Lead, 

 20. Zinc. 21. Mercury. 22. Iron. 23. Platina. — General 

 inferences. To these follow a table of 32 pages containing 

 the relative antiquity and geognostic relations of simple mi- 

 nerals : also an extensive table of the most remarkable heights 

 of mountains, hills, and lakes in different parts of the world, 

 and a table of volcanoes. The volume is concluded with a 

 series of notes explanatory of passages in the text, and re- 

 ferring to the Huttonian theory of the earth. 



Mr, 



